Edelbrock Part # 450021 Small-Block Chevy Cast Iron Engine Block is cast and machined in the U.S.A. and made to last. Being that Edelbrock engine blocks are cast and machined in the U.S.A. allows us to precision machine them to our very own specifications. Engine block part # 450021 is the perfect starting point for any Small-Block Chevy high performance engine build especially when used with an Edelbrock Total Power Package. When it comes to starting with the right base for your engine build... make sure to choose the one made right here in the U.S.A. Edelbrock part # 450021 Small-Block Chevy Cast Iron Engine Block is manufactured to the following specifications: • Block Type: Small-Block Chevy • Block Material: Cast Iron • Cylinder Wall: Wet • Supplied Bore Size: 4.000" • Supplied Stroke Clearance: 3.750" • Max Recommended Bore: 4.060" • Max Recommended Stroke: 3.750" • Max Recommended C.I.: 388 • Deck Height: 9.025" • Cam Bearing Bore ID: 2.000" • Camshaft Position: Standard SBC • Head Bolt Pattern: Standard SBC • Inside Head Stud Bosses: No • Lifter Bores: Standard SBC • Main Bearing Size: Standard SBC 350 • Main Bearing Bore: 2.6406" • Main Caps: 4 Bolt Splayed Nodular Iron • Oil System: Main Priority • Oil Cooler Holes: N/A • Rear Main Seal: 1-Piece • Hydraulic Roller Provisions: Yes • Stud and Bolt Holes: Through to Water • Tapped Holes: Standard Thread & Pitch • Timing Chain/Gears: Standard SBC • Timing Cover: 8 or 10 Bolt • Fuel Pump Boss: Yes • Starter: Standard Location • Clutch Linkage Boss: Yes Engine Block Gm Sbc Wet 4.00" Bore 9.000" Deck Height Cast Iron.
