{"id":4849831444558,"title":"ARP 135-3703 BBC Head Bolt Kit 12pt.","handle":"arp135-3703","description":"\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eThis ARP 135-3703 BBC High Performance cylinder head bolt kit \u003c\/span\u003e\u003cspan style=\"font-family: 'Times New Roman', serif; font-size: 12pt;\"\u003eis for Mark IV blocks with Late Bowtie Aluminum, Dart Iron Eagle, Dart Pro-1, Pro Topline and World Products iron heads. \u003c\/span\u003e\u003cspan style=\"font-family: 'Times New Roman', serif; font-size: 12pt;\"\u003eThe reduced wrenching hex head, or 12 point, eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 psi (which is 15% stronger than Grade 8)!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003e Kits come complete with hardened parallel-ground washers. Sold as a set of 32.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-outline-level: 3;\"\u003e\u003cstrong\u003e\u003cu\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eARP 135-3703 BBC Head Bolt Kit Fits:\u003c\/span\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eMark IV Late Bowtie Aluminum heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eDart Iron Eagle heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\u003cspan style=\"font-family: 'Times New Roman', serif; font-size: 12pt;\"\u003eDart Pro-1 heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003ePro Topline heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eWorld Products iron heads\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eWhich is better, either cylinder head studs or bolts? The answer depends on the installation. On many street-driven vehicles, master cylinders and other items protrude into the engine compartment. It’s probably necessary to use head bolts so that the cylinder heads can be removed with the engine in the car.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eThe ARP 135-3703 BBC Head Bolt Kit is perfect for that application!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eStuds also provide more accurate and consistent torque loading. Using studs ensures easier engine assembly, and proper alignment of both the cylinder head and gasket.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eHere’s why: when you use bolts to secure the head, the fastener is actually being “twisted” while it’s being torqued to the proper reading. Accordingly, the bolt is reacting to two different forces simultaneously.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman', serif; font-size: 16px;\"\u003eInstall a stud in a “relaxed” mode – never crank it in tightly using a jammed nut. Always install the stud hand tight! Then, when applying torque to the nut, the stud will stretch only on the vertical axis.\u003c\/span\u003e\u003c\/p\u003e","published_at":"2020-10-08T16:31:45-05:00","created_at":"2020-10-08T16:31:46-05:00","vendor":"ARP","type":"Cylinder Head Fasteners","tags":["ARP","Cut to Fit: No","Cylinder Head Style (application): Bowtie Aluminum","Cylinder Head Style (application): Dart Pro 1","Cylinder Head Style (application): Merlin","Cylinder Head Style (application): Pro Top Line","Cylinder Head Style (application): World Products","Engine Size and Year: 6.5L\/396 1966-70","Engine Size and Year: 6.6L\/402 1970-72","Engine Size and Year: 7.0L\/427 1966-69","Engine Size and Year: 7.4L\/454 1970-90","Engine Size and Year: 7.4L\/454 1991-95","Engine Size and Year: 7.4L\/454 1996-00","Fastener Finish: Black oxide","Fastener Material: Chromoly","Fastener Style: Bolt","Head Style: 12-point","Make: Chevy","Quantity: Sold as a kit.","Undercut Stud: No","Washers Included: Yes"],"price":13199,"price_min":13199,"price_max":13199,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":32666490667086,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"ARP135-3703","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"ARP 135-3703 BBC Head Bolt Kit 12pt.","public_title":null,"options":["Default Title"],"price":13199,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"672036002312","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.winnerscircle.com\/cdn\/shop\/products\/135-3703Cover.jpg?v=1670354410","\/\/www.winnerscircle.com\/cdn\/shop\/products\/ARP135-3703_096ad7be-ec9c-4eca-88fc-76edbdac11dc.jpg?v=1670354410"],"featured_image":"\/\/www.winnerscircle.com\/cdn\/shop\/products\/135-3703Cover.jpg?v=1670354410","options":["Title"],"media":[{"alt":null,"id":31586249146593,"position":1,"preview_image":{"aspect_ratio":0.993,"height":1829,"width":1817,"src":"\/\/www.winnerscircle.com\/cdn\/shop\/products\/135-3703Cover.jpg?v=1670354410"},"aspect_ratio":0.993,"height":1829,"media_type":"image","src":"\/\/www.winnerscircle.com\/cdn\/shop\/products\/135-3703Cover.jpg?v=1670354410","width":1817},{"alt":"ARP 135-3703 BBC 12 point Cylinder Head Bolt High Performance Kit for Mark IV or V Late Bowtie, Dart, AFR, World Products Aluminum Heads, 180,000 PSI","id":8031911673934,"position":2,"preview_image":{"aspect_ratio":1.34,"height":900,"width":1206,"src":"\/\/www.winnerscircle.com\/cdn\/shop\/products\/ARP135-3703_096ad7be-ec9c-4eca-88fc-76edbdac11dc.jpg?v=1670354410"},"aspect_ratio":1.34,"height":900,"media_type":"image","src":"\/\/www.winnerscircle.com\/cdn\/shop\/products\/ARP135-3703_096ad7be-ec9c-4eca-88fc-76edbdac11dc.jpg?v=1670354410","width":1206}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eThis ARP 135-3703 BBC High Performance cylinder head bolt kit \u003c\/span\u003e\u003cspan style=\"font-family: 'Times New Roman', serif; font-size: 12pt;\"\u003eis for Mark IV blocks with Late Bowtie Aluminum, Dart Iron Eagle, Dart Pro-1, Pro Topline and World Products iron heads. \u003c\/span\u003e\u003cspan style=\"font-family: 'Times New Roman', serif; font-size: 12pt;\"\u003eThe reduced wrenching hex head, or 12 point, eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 psi (which is 15% stronger than Grade 8)!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003e Kits come complete with hardened parallel-ground washers. Sold as a set of 32.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-outline-level: 3;\"\u003e\u003cstrong\u003e\u003cu\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eARP 135-3703 BBC Head Bolt Kit Fits:\u003c\/span\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eMark IV Late Bowtie Aluminum heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eDart Iron Eagle heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\u003cspan style=\"font-family: 'Times New Roman', serif; font-size: 12pt;\"\u003eDart Pro-1 heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003ePro Topline heads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eWorld Products iron heads\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eWhich is better, either cylinder head studs or bolts? The answer depends on the installation. On many street-driven vehicles, master cylinders and other items protrude into the engine compartment. It’s probably necessary to use head bolts so that the cylinder heads can be removed with the engine in the car.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eThe ARP 135-3703 BBC Head Bolt Kit is perfect for that application!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eStuds also provide more accurate and consistent torque loading. Using studs ensures easier engine assembly, and proper alignment of both the cylinder head and gasket.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-size: 12.0pt; font-family: 'Times New Roman',serif; mso-fareast-font-family: 'Times New Roman';\"\u003eHere’s why: when you use bolts to secure the head, the fastener is actually being “twisted” while it’s being torqued to the proper reading. Accordingly, the bolt is reacting to two different forces simultaneously.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal;\"\u003e\u003cspan style=\"font-family: 'Times New Roman', serif; font-size: 16px;\"\u003eInstall a stud in a “relaxed” mode – never crank it in tightly using a jammed nut. Always install the stud hand tight! Then, when applying torque to the nut, the stud will stretch only on the vertical axis.\u003c\/span\u003e\u003c\/p\u003e"}