{"title":"LS1 \u0026 LS2 Head Studs | Gen III \u0026 2004+ LS Kits","description":"\u003cstyle\u003e\n  .pfa-ls-collection {\n    margin: 0 0 2rem;\n    padding: 1.5rem;\n    border: 1px solid rgba(0, 0, 0, 0.08);\n    border-radius: 14px;\n    background: #f7f7f7;\n  }\n\n  .pfa-ls-collection * {\n    box-sizing: border-box;\n  }\n\n  .pfa-ls-eyebrow {\n    margin: 0 0 0.5rem;\n    font-size: 0.85rem;\n    font-weight: 700;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n    opacity: 0.75;\n  }\n\n  .pfa-ls-collection h2 {\n    margin: 0 0 0.75rem;\n    font-size: clamp(1.45rem, 2vw, 2rem);\n    line-height: 1.2;\n  }\n\n  .pfa-ls-collection p {\n    margin: 0 0 1rem;\n    line-height: 1.65;\n  }\n\n  .pfa-ls-grid {\n    display: grid;\n    grid-template-columns: repeat(4, minmax(0, 1fr));\n    gap: 0.85rem;\n    margin: 1.25rem 0;\n  }\n\n  .pfa-ls-card {\n    padding: 1rem;\n    border-radius: 12px;\n    background: #ffffff;\n    border: 1px solid rgba(0, 0, 0, 0.08);\n  }\n\n  .pfa-ls-card strong {\n    display: block;\n    margin-bottom: 0.35rem;\n    font-size: 0.95rem;\n  }\n\n  .pfa-ls-card span {\n    display: block;\n    font-size: 0.92rem;\n    line-height: 1.5;\n    opacity: 0.85;\n  }\n\n  .pfa-ls-note {\n    margin-top: 1rem;\n    padding: 1rem;\n    border-left: 4px solid currentColor;\n    background: #ffffff;\n    border-radius: 10px;\n  }\n\n  .pfa-ls-links {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 0.5rem;\n    margin-top: 1rem;\n  }\n\n  .pfa-ls-links a {\n    display: inline-flex;\n    align-items: center;\n    padding: 0.55rem 0.8rem;\n    border-radius: 999px;\n    text-decoration: none;\n    background: #ffffff;\n    border: 1px solid rgba(0, 0, 0, 0.12);\n    font-size: 0.92rem;\n  }\n\n  .pfa-ls-links a:hover {\n    text-decoration: underline;\n  }\n\n  @media (max-width: 900px) {\n    .pfa-ls-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 600px) {\n    .pfa-ls-collection {\n      padding: 1rem;\n    }\n\n    .pfa-ls-grid {\n      grid-template-columns: 1fr;\n    }\n  }\n\u003c\/style\u003e\n\u003csection class=\"pfa-ls-collection\"\u003e\n\u003cp class=\"pfa-ls-eyebrow\"\u003eLS1 \u0026amp; LS2 head stud kits\u003c\/p\u003e\n\u003ch2\u003eLS Gen III Head Studs for LS1, LS2 \u0026amp; LSX Builds\u003c\/h2\u003e\n\u003cdiv class=\"pfa-ls-grid\"\u003e\n\u003cdiv class=\"pfa-ls-card\"\u003e\n\u003cstrong\u003e2003 \u0026amp; earlier LS heads\u003c\/strong\u003e \u003cspan\u003e Options for early LS1-style applications, including 12-point head stud kits suited to 2003-and-earlier GM LS engines. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pfa-ls-card\"\u003e\n\u003cstrong\u003e2004 \u0026amp; later LS heads\u003c\/strong\u003e \u003cspan\u003e Head stud kits for later LS cylinder head configurations, including common LS2 and 2004+ LS head applications. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pfa-ls-card\"\u003e\n\u003cstrong\u003eARP, Point One \u0026amp; OptiTorque\u003c\/strong\u003e \u003cspan\u003e Choose from trusted performance fastener brands, including ARP, Point One and OptiTorque. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pfa-ls-card\"\u003e\n\u003cstrong\u003eAftermarket LS heads\u003c\/strong\u003e \u003cspan\u003e Selected kits suit LS engines using aftermarket 23-degree heads, LSX blocks or RHS\/LS7-style combinations. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","products":[{"product_id":"arp-234-4110","title":"ARP 234-4110 SB Chevy LS1 pro-series hex head stud kit","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003eARP 234-4110\u003c\/strong\u003e is a SB Chevy LS1 pro-series hex head stud kit.\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eARP\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003e234-4110\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__fastener-specs\"\u003e\u003ch3\u003eFastener Specification\u003c\/h3\u003e\n\u003cul class=\"pfa-description__spec-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead\/Nut Style:\u003c\/strong\u003e Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashers Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Size:\u003c\/strong\u003e 1\/2 in | 5\/8 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroached Allen Size:\u003c\/strong\u003e 1\/8 in | 3\/16 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Chromoly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Oxide\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\u003cli\u003eChev LS Gen III\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__details\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul class=\"pfa-description__detail-grid\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufactures Part Number:\u003c\/strong\u003e 234-4110\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlloy:\u003c\/strong\u003e 8740\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__links\"\u003e\u003ch3\u003eHelpful Links\u003c\/h3\u003e\n\u003cp class=\"pfa-description__actions\"\u003e\u003ca class=\"pfa-description__link\" href=\"https:\/\/cdn2.arp-bolts.com\/instructions\/234-4110_flat-washer.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eView ARP installation instructions\u003c\/a\u003e\u003c\/p\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":53847526015344,"sku":"ARP-234-4110","price":725.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5950\/0144\/files\/ARP234-4110.jpg?v=1781597674"},{"product_id":"arp-234-4316","title":"ARP 234-4316 SB Chevy LS1 pro-series thru '03 12pt head stud kit","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003eARP 234-4316\u003c\/strong\u003e is a SB Chevy LS1 pro-series thru '03 12pt head stud kit.\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eARP\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003e234-4316\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__fastener-specs\"\u003e\u003ch3\u003eFastener Specification\u003c\/h3\u003e\n\u003cul class=\"pfa-description__spec-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead\/Nut Style:\u003c\/strong\u003e 12 Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashers Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Size:\u003c\/strong\u003e 9\/16 in | 3\/8 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroached Allen Size:\u003c\/strong\u003e 1\/8 in | 3\/16 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Chromoly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Oxide\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\u003cli\u003eChev LS Gen III\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__details\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul class=\"pfa-description__detail-grid\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufactures Part Number:\u003c\/strong\u003e 234-4316\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlloy:\u003c\/strong\u003e 8740\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__links\"\u003e\u003ch3\u003eHelpful Links\u003c\/h3\u003e\n\u003cp class=\"pfa-description__actions\"\u003e\u003ca class=\"pfa-description__link\" href=\"https:\/\/cdn2.arp-bolts.com\/instructions\/234-4316_flat-washer.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eView ARP installation instructions\u003c\/a\u003e\u003c\/p\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":53847526703472,"sku":"ARP-234-4316","price":790.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5950\/0144\/files\/ARP234-4316_9c492a8b-6ce5-47d5-8af5-439406b30734.jpg?v=1781597681"},{"product_id":"arp-234-4317","title":"ARP 234-4317 SB Chevy LS1 pro-series '04 12pt head stud kit","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003eARP 234-4317\u003c\/strong\u003e is a SB Chevy LS1 pro-series '04 12pt head stud kit.\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eARP\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003e234-4317\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__fastener-specs\"\u003e\u003ch3\u003eFastener Specification\u003c\/h3\u003e\n\u003cul class=\"pfa-description__spec-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead\/Nut Style:\u003c\/strong\u003e 12 Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashers Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Size:\u003c\/strong\u003e 3\/8 in | 9\/16 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroached Allen Size:\u003c\/strong\u003e 1\/8 in | 3\/16 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Chromoly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Oxide\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\n\u003cli\u003eChev LS Gen III\u003c\/li\u003e\n\u003cli\u003eChev LS Gen IV\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__details\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul class=\"pfa-description__detail-grid\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufactures Part Number:\u003c\/strong\u003e 234-4317\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlloy:\u003c\/strong\u003e 8740\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__links\"\u003e\u003ch3\u003eHelpful Links\u003c\/h3\u003e\n\u003cp class=\"pfa-description__actions\"\u003e\u003ca class=\"pfa-description__link\" href=\"https:\/\/cdn2.arp-bolts.com\/instructions\/234-4317_flat-washer.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eView ARP installation instructions\u003c\/a\u003e\u003c\/p\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":53847526736240,"sku":"ARP-234-4317","price":700.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5950\/0144\/files\/ARP234-4317.jpg?v=1781597682"},{"product_id":"arp-234-4319","title":"ARP 234-4319 SB Chevy GENIII LSX 12pt head stud kit","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003eARP 234-4319\u003c\/strong\u003e is a SB Chevy GENIII LSX 12pt head stud kit.\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eARP\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003e234-4319\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__fastener-specs\"\u003e\u003ch3\u003eFastener Specification\u003c\/h3\u003e\n\u003cul class=\"pfa-description__spec-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead\/Nut Style:\u003c\/strong\u003e 12 Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashers Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Size:\u003c\/strong\u003e 3\/8 in | 9\/16 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroached Allen Size:\u003c\/strong\u003e 1\/8 in | 3\/16 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Chromoly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Oxide\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\n\u003cli\u003eChev LS Gen III\u003c\/li\u003e\n\u003cli\u003eChev LS Gen IV Lsx\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__details\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul class=\"pfa-description__detail-grid\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufactures Part Number:\u003c\/strong\u003e 234-4319\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlloy:\u003c\/strong\u003e ARP 2000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__links\"\u003e\u003ch3\u003eHelpful Links\u003c\/h3\u003e\n\u003cp class=\"pfa-description__actions\"\u003e\u003ca class=\"pfa-description__link\" href=\"https:\/\/cdn2.arp-bolts.com\/instructions\/234-4319_flat-washer.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eView ARP installation instructions\u003c\/a\u003e\u003c\/p\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":53847526769008,"sku":"ARP-234-4319","price":1171.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5950\/0144\/files\/ARP234-4319.jpg?v=1781597683"},{"product_id":"arp-234-4339","title":"ARP 234-4339 SBC LS-RHS BLK W\/RHS LS7 HEAD HEAD STUD KIT","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003eARP 234-4339\u003c\/strong\u003e is a SBC LS-RHS BLK W\/RHS LS7 HEAD HEAD STUD KIT.\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eARP\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003e234-4339\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__fastener-specs\"\u003e\u003ch3\u003eFastener Specification\u003c\/h3\u003e\n\u003cul class=\"pfa-description__spec-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead\/Nut Style:\u003c\/strong\u003e 12 Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashers Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Size:\u003c\/strong\u003e 3\/8 in | 1\/2 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroached Allen Size:\u003c\/strong\u003e 1\/8 in | 3\/16 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Chromoly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Oxide\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\n\u003cli\u003eChev LS Gen III\u003c\/li\u003e\n\u003cli\u003eRhs LS7\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__details\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul class=\"pfa-description__detail-grid\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufactures Part Number:\u003c\/strong\u003e 234-4339\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlloy:\u003c\/strong\u003e ARP 2000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__links\"\u003e\u003ch3\u003eHelpful Links\u003c\/h3\u003e\n\u003cp class=\"pfa-description__actions\"\u003e\u003ca class=\"pfa-description__link\" href=\"https:\/\/cdn2.arp-bolts.com\/instructions\/234-4339_flat-washer.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eView ARP installation instructions\u003c\/a\u003e\u003c\/p\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":53847526998384,"sku":"ARP-234-4339","price":1175.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5950\/0144\/files\/ARP234-4339.jpg?v=1781597688"},{"product_id":"arp-234-4344","title":"ARP 234-4344 Head Stud Kit 12pt GM LS 2003 \u0026 Earlier","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003eARP 234-4344\u003c\/strong\u003e is a Head Stud Kit 12pt GM LS 2003 \u0026amp; Earlier.\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eARP\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003e234-4344\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__fastener-specs\"\u003e\u003ch3\u003eFastener Specification\u003c\/h3\u003e\n\u003cul class=\"pfa-description__spec-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead\/Nut Style:\u003c\/strong\u003e 12 Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashers Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Size:\u003c\/strong\u003e 9\/16 in | 3\/8 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroached Allen Size:\u003c\/strong\u003e 1\/8 in | 3\/16 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Chromoly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Oxide\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\u003cli\u003eChev LS Gen III\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__details\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul class=\"pfa-description__detail-grid\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufactures Part Number:\u003c\/strong\u003e 234-4344\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlloy:\u003c\/strong\u003e 8740\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__links\"\u003e\u003ch3\u003eHelpful Links\u003c\/h3\u003e\n\u003cp class=\"pfa-description__actions\"\u003e\u003ca class=\"pfa-description__link\" href=\"https:\/\/cdn2.arp-bolts.com\/instructions\/234-4344_flat-washer.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eView ARP installation instructions\u003c\/a\u003e\u003c\/p\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"ARP","offers":[{"title":"Default Title","offer_id":53847527162224,"sku":"ARP-234-4344","price":907.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5950\/0144\/files\/ARP234-4344_f93acc62-722d-48a2-9d8a-292175da8543.jpg?v=1781597693"},{"product_id":"arp-234-4345","title":"ARP 234-4345 Head Stud Kit - LS w\/ 04 \u0026 Later Heads","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003eARP 234-4345\u003c\/strong\u003e is a Head Stud Kit - LS w\/ 04 \u0026amp; Later Heads.\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eARP\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003e234-4345\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__fastener-specs\"\u003e\u003ch3\u003eFastener Specification\u003c\/h3\u003e\n\u003cul class=\"pfa-description__spec-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead\/Nut Style:\u003c\/strong\u003e 12 Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashers Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Size:\u003c\/strong\u003e 9\/16 in | 3\/8 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroached Allen Size:\u003c\/strong\u003e 3\/16 in | 1\/8 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Chromoly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Oxide\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\n\u003cli\u003eChev LS Gen III\u003c\/li\u003e\n\u003cli\u003eChev LS Gen IV\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pfa-description__section pfa-description__details\"\u003e\u003ch3\u003eProduct 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Title","offer_id":53847527194992,"sku":"ARP-234-4345","price":919.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5950\/0144\/files\/ARP234-4345_e535692c-797d-48a3-adba-e816c4b3c338.jpg?v=1781597693"},{"product_id":"optitorque-10413","title":"OptiTorque 10413 Small Block Chevy LS - TorqueMaster Head Stud Kit - 2004 and Later (all one length)","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003eOptiTorque 10413\u003c\/strong\u003e is a Small Block Chevy LS - TorqueMaster Head Stud Kit - 2004 and Later (all one length).\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eOptiTorque\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003e10413\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\n\u003cli\u003eChev LS Gen III\u003c\/li\u003e\n\u003cli\u003eChev LS Gen IV\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"OptiTorque","offers":[{"title":"Default Title","offer_id":53870195638640,"sku":"OTT-10413","price":782.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5950\/0144\/files\/OTT10413.jpg?v=1781598909"},{"product_id":"optitorque-10413p","title":"OptiTorque 10413p Small Block Chevy LS - Patriot Head Stud Kit - 2004 and Later (all one length)","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003eOptiTorque 10413p\u003c\/strong\u003e is a Small Block Chevy LS - Patriot Head Stud Kit - 2004 and Later (all one length).\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eOptiTorque\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder 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overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eOptiTorque\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003e10575\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\u003cli\u003eChev LS Gen III\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"OptiTorque","offers":[{"title":"Default Title","offer_id":53870196719984,"sku":"OTT-10575","price":789.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5950\/0144\/files\/OTT10575.jpg?v=1781598930"},{"product_id":"optitorque-10579","title":"OptiTorque 10579 Chevrolet LS - Gen IV - Custom Age Head Stud Kit","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003eOptiTorque 10579\u003c\/strong\u003e is a Chevrolet LS - Gen IV - Custom Age Head Stud Kit.\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eOptiTorque\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003e10579\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\n\u003cli\u003eChev LS Gen III\u003c\/li\u003e\n\u003cli\u003eChev LS Gen IV\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"OptiTorque","offers":[{"title":"Default Title","offer_id":53870196752752,"sku":"OTT-10579","price":1565.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5950\/0144\/files\/OTT10579.jpg?v=1781598931"},{"product_id":"optitorque-10581","title":"OptiTorque 10581 Chevrolet LSX Small Block - Patriot Head Stud Kit","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003eOptiTorque 10581\u003c\/strong\u003e is a Chevrolet LSX Small Block - Patriot Head Stud Kit.\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003eOptiTorque\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003e10581\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\n\u003cli\u003eChev LS Gen III\u003c\/li\u003e\n\u003cli\u003eChev LS Gen IV Lsx\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"OptiTorque","offers":[{"title":"Default Title","offer_id":53870196785520,"sku":"OTT-10581","price":994.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5950\/0144\/files\/OTT10581.jpg?v=1781598931"},{"product_id":"p1-k003-h02e","title":"Point One K003-H02E GM LS 12Pt Head Stud Kit Gen-3\/Gen-4 2004 Later","description":"\u003carticle class=\"pfa-description\" data-pfa-description\u003e\u003cheader class=\"pfa-description__header\"\u003e\u003cp class=\"pfa-description__summary\"\u003e\u003cstrong\u003ePoint One K003-H02E\u003c\/strong\u003e - Cylinder Head Stud Kit - 12 Point Nuts - Steel - Black Oxide - GM LS-Series - Kit.\u003c\/p\u003e\n\u003cul class=\"pfa-description__overview\" aria-label=\"Product overview\"\u003e\n\u003cli\u003e\n\u003cspan\u003eBrand\u003c\/span\u003e\u003cstrong\u003ePoint One\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003eK003-H02E\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\u003cli\u003eChev LS Gen III\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"Point 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One\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCategory\u003c\/span\u003e\u003cstrong\u003eCylinder Head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProduct Type\u003c\/span\u003e\u003cstrong\u003eHead\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePart Number\u003c\/span\u003e\u003cstrong\u003eK003-H05E\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/header\u003e\u003csection class=\"pfa-description__section pfa-description__compatibility\"\u003e\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul class=\"pfa-description__compatibility-list\"\u003e\u003cli\u003eChev LS Gen III\u003c\/li\u003e\u003c\/ul\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"Point One","offers":[{"title":"Default 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