{"product_id":"arp-gm-v6-v8-hex-bellhousing-bolt-kit","title":"ARP GM V6 \u0026 V8 Hex Bellhousing Bolt Kit","description":"\u003cp\u003eThe ARP GM Hex Bellhousing Bolt Kit provides the fasteners needed to secure a compatible transmission bellhousing to the engine block. It is designed primarily for traditional Chevrolet Small Block, Chevrolet Big Block, and select GM six-cylinder and V8 applications using six 3\/8\"-16 bellhousing bolts.\u003c\/p\u003e\n\n\u003cp\u003eEach kit includes six hex-head bolts and matching washers. The bolts are manufactured from ARP 8740 chromoly, treated with a black oxide finish, and feature a 1.375-inch under-head length.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eBellhousing-to-engine-block fastener kit\u003c\/li\u003e\n  \u003cli\u003eDesigned for compatible GM and Chevrolet engine applications\u003c\/li\u003e\n  \u003cli\u003eARP 8740 chromoly construction\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish\u003c\/li\u003e\n  \u003cli\u003eHex-head design\u003c\/li\u003e\n  \u003cli\u003e3\/8\"-16 thread size\u003c\/li\u003e\n  \u003cli\u003e1.375-inch under-head length\u003c\/li\u003e\n  \u003cli\u003e7\/16-inch hex wrenching size\u003c\/li\u003e\n  \u003cli\u003eIncludes six bolts and six matching washers\u003c\/li\u003e\n  \u003cli\u003eARP part number 129-0901\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\n\u003ch4\u003eChevrolet Small Block V8\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003e265 cubic-inch Small Block\u003c\/li\u003e\n  \u003cli\u003e283 cubic-inch Small Block\u003c\/li\u003e\n  \u003cli\u003e302 cubic-inch Small Block\u003c\/li\u003e\n  \u003cli\u003e305 cubic-inch Small Block\u003c\/li\u003e\n  \u003cli\u003e307 cubic-inch Small Block\u003c\/li\u003e\n  \u003cli\u003e327 cubic-inch Small Block\u003c\/li\u003e\n  \u003cli\u003e350 cubic-inch Small Block\u003c\/li\u003e\n  \u003cli\u003e400 cubic-inch Small Block\u003c\/li\u003e\n  \u003cli\u003eOther compatible traditional Chevrolet Small Block applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eChevrolet Big Block V8\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003e396 cubic-inch Big Block\u003c\/li\u003e\n  \u003cli\u003e402 cubic-inch Big Block\u003c\/li\u003e\n  \u003cli\u003e409 cubic-inch Big Block\u003c\/li\u003e\n  \u003cli\u003e427 cubic-inch Big Block\u003c\/li\u003e\n  \u003cli\u003e454 cubic-inch Big Block\u003c\/li\u003e\n  \u003cli\u003e496 cubic-inch Big Block\u003c\/li\u003e\n  \u003cli\u003e502 cubic-inch Big Block\u003c\/li\u003e\n  \u003cli\u003e572 cubic-inch Big Block\u003c\/li\u003e\n  \u003cli\u003eOther compatible Chevrolet Big Block applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAdditional GM Applications\u003c\/h4\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSelect General Motors four-cylinder engines\u003c\/li\u003e\n  \u003cli\u003eSelect General Motors six-cylinder engines\u003c\/li\u003e\n  \u003cli\u003eSelect General Motors V8 engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eEngine family or displacement alone does not guarantee compatibility. Confirm that the engine block and bellhousing require six 3\/8\"-16 bolts with a 1.375-inch under-head length before ordering.\u003c\/p\u003e\n\n\u003cp\u003eThis kit should not automatically be applied to newer GM LS- or LT-series engines, which may use different fastener sizes and application-specific bellhousing bolt kits.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFastener location: Bellhousing to engine block\u003c\/li\u003e\n  \u003cli\u003eFastener style: Hex-head bolt\u003c\/li\u003e\n  \u003cli\u003eThread size: 3\/8\"-16\u003c\/li\u003e\n  \u003cli\u003eUnder-head length: 1.375 inches\u003c\/li\u003e\n  \u003cli\u003eHex wrenching size: 7\/16 inch\u003c\/li\u003e\n  \u003cli\u003eMaterial: ARP 8740 chromoly\u003c\/li\u003e\n  \u003cli\u003eFinish: Black oxide\u003c\/li\u003e\n  \u003cli\u003eQuantity: 6 bolts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended Use\u003c\/h3\u003e\n\n\u003cp\u003eRecommended when installing a compatible manual or automatic transmission bellhousing on a traditional Chevrolet or GM engine. The kit is suitable for drivetrain repairs, engine swaps, restoration projects, street-performance builds, and racing applications requiring the specified bolt dimensions.\u003c\/p\u003e\n\n\u003cp\u003eThese bolts attach the bellhousing to the engine block. They are not intended to replace the separate transmission-to-bellhousing fasteners, torque-converter bolts, flywheel bolts, flexplate bolts, or clutch pressure plate bolts.\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e6 ARP hex-head bellhousing bolts\u003c\/li\u003e\n  \u003cli\u003e6 matching washers\u003c\/li\u003e\n  \u003cli\u003eARP part number 129-0901\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe bellhousing, transmission, alignment dowels, inspection cover, starter hardware, and other drivetrain fasteners are not included.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\n\u003cp\u003eInspect and clean the threaded holes in the engine block before installation. Make sure the bellhousing is fully seated over the engine’s alignment dowels before tightening the bolts. The bolts should not be used to pull a misaligned bellhousing against the block.\u003c\/p\u003e\n\n\u003cp\u003eStart every bolt by hand, then tighten the fasteners gradually using the appropriate sequence. Follow ARP’s general torque recommendations and the engine or bellhousing manufacturer’s requirements for the specified thread lubricant or sealer.\u003c\/p\u003e\n\n\u003cp\u003eVerify that each bolt provides adequate thread engagement without bottoming in the engine block. Professional installation and a bellhousing-alignment inspection are recommended for performance drivetrain applications.\u003c\/p\u003e\n","brand":"ARP","offers":[{"title":"Default Title","offer_id":71261671850237,"sku":"ARP129-0901","price":19.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1935\/9157\/files\/4180a11a9b87870705bdb4487718c5d0L.jpg?v=1788850873","url":"https:\/\/www.velocityshop.com\/products\/arp-gm-v6-v8-hex-bellhousing-bolt-kit","provider":"Velocity Shop","version":"1.0","type":"link"}