Chevs of the 40s » Chevy Parts » Engine » Crate Engines » Item #BP3833CTC1 Discontinued Item: This item is discontinued. Please CALL to see if there is a replacement or an alternative. Chevrolet Crate Engine, GM - Dressed 383ci (Chevy Small Block) Vortec Heads, Roller Cam, Carb and Ignition 420hp - 440ftlb Item # BP3833CTC1 Weighs 1.0000lbs. Crate Engines GM SB - Vortec Heads w/ Roller Cam 420hp, 383ci. Includes Edelbrock 600cfm carb and ignition system. Torque = 440ft-lbs. Block: 4 bolt main, 1-piece rear seal block w/Passenger side dipstick only Square and parallel decked Align honed main bearing bore Cylinders honed on computer controlled machine to within .0002 straightness and roundness Cylinders are sonic tested for thickness Rotating Assembly: New SCAT cast crankshaft Flat top hypereutectic pistons Chevy heavy beam rods with 150,000 psi bolts Hastings Moly rings Balanced rotating assembly Melling high volume oil pump Roller camshaft Roller rockers Heavy duty double roller timing set Cylinder Heads: New Cast iron "vortec" heads 1.25 diameter valve springs Hardened retainers and springs 2.02 swirl polished intake valves 1.60 swirl polished exhaust valves Hardened push rods A Ton Of Extras: Holley 750Cfm Carb Performance aluminum intake manifold 9.5 to 1 compression New chrome valve covers Brass freeze plugs Dyno tested - and shipped with results Comes with 30 month / 50,000 mile warranty Critical Specs: Camshaft: .520 intake, .540 exhaust lift / 236 intake, 242 exhaust duration at .050 Horsepower: 420 Torque: 440 Compression Ratio: 9.5 to 1 This part fits most Chevrolet Cars and Trucks.; exceptions may apply. Please read the complete description to see if this part fits your specific vehicle and application. Discontinued Item This product can expose you to a chemical, which is known to the State of California to cause cancer or reproductive harm. For more information go to www.P65Warnings.ca.gov CA Prop 65 Warning This product can expose you to a chemical, which is known to the State of California to cause cancer or reproductive harm. For more information go to www.P65Warnings.ca.gov Reviews There are no reviews at this time Login to Write A Review Fits Vehicle Models Product Fits Vehicle Models There are no specific vehicles models specified for this part.