{"product_id":"eagle-chevrolet-305-350-small-block-2pc-rear-seal-3-75in-stroke-internal-balance-cast-crank-shaft","title":"Eagle Chevrolet 305\/350 Small Block 2pc Rear Seal 3.75in Stroke Internal Balance Cast Crank Shaft","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e10350375057I\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 793348000848\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eEagle Chevrolet 1955-1986 305\/350 Small Block 2pc Rear Seal 3.75in Stroke Internal Balance Cast Crankshaft\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eEagle cast crankshaft upgrades Chevrolet 305 and 350 small block engines with 2-piece rear main seals from 1955 to 1986. The 3.75-inch stroke and internal balance deliver reliable 383 stroker builds for everyday street driving with strong torque gains. Larger .092-inch fillet radii add strength alongside OE replacement bearings in pump-gas setups.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCast Iron Construction:\u003c\/strong\u003e Builds a strong base for daily driven engines and moderate horsepower levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.75-Inch Stroke:\u003c\/strong\u003e Boosts displacement in 305\/350 blocks to produce more torque and power on the street.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Balance:\u003c\/strong\u003e Fits directly without adding weights to flexplate or harmonic balancer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Piece Rear Seal:\u003c\/strong\u003e Matches original design in pre-1986 small block Chevy engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e.092-Inch Fillet Radii:\u003c\/strong\u003e Increases durability over stock cranks using standard bearings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBest suited for pump-gas naturally aspirated non-competition road cars.\u003c\/li\u003e\n\u003cli\u003eStandard journal sizes: 350 mains (2.448\/2.449-inch) and 2.100-inch rods.\u003c\/li\u003e\n\u003cli\u003eHeavy precision-machined part ships in protective oversize box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eBalance complete rotating assembly including pistons rods and flexplate.\u003c\/li\u003e\n\u003cli\u003eUses standard SBC hardware and main studs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1967-1981\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCamaro\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1963-1982\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCorvette\u003c\/td\u003e\n\u003ctd\u003eStingray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1964-1972\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eChevelle\u003c\/td\u003e\n\u003ctd\u003eSS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1962-1979\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eImpala\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1968-1974\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eNova\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1960-1987\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eC\/K Pickup\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1955-1986\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSmall Block V8\u003c\/td\u003e\n\u003ctd\u003e262-400 CID 2pc Seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Eagle?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEstablished leader in aftermarket engine components for Chevy builds.\u003c\/li\u003e\n\u003cli\u003eCast design delivers value with performance gains over factory parts.\u003c\/li\u003e\n\u003cli\u003ePrecision machined for consistent results in street engine projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this crankshaft fit 1986 and newer small block Chevy engines?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Designed for 1955-1986 blocks with 2-piece rear main seals. Later one-piece seal blocks require different cranks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What journal sizes and material does it use?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Cast iron with standard 350 main journals (2.448-2.449 inches) and 2.100-inch rod journals for direct bolt-in.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty applies and installation tips?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Backed by Eagle limited warranty. Always degree cam and balance assembly during install.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or FedEx Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Oversize box 28in L x 16in W x 10in H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 59 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Eagle","offers":[{"title":"Default Title","offer_id":43518317428815,"sku":"EAG10350375057I","price":444.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/eagle-chevrolet-305350-small-block-2pc-rear-seal-3_75in-stroke-internal-balance-cast-crank-shaft-eagle.png?v=1769111567","url":"https:\/\/www.blackopsautoworks.com\/products\/eagle-chevrolet-305-350-small-block-2pc-rear-seal-3-75in-stroke-internal-balance-cast-crank-shaft","provider":"Black Ops Auto Works","version":"1.0","type":"link"}