Big-Block Chevy Engine Block with 2-Piece Rear Main Seal

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Edelbrock part #450000 Big Block Chevy Siamese 4.50" Bore with a 9.80 Deck height, Cast Iron block with a two piece rear main seal


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Edelbrock part #450000 Big-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 #450000 is the perfect starting point for any Big-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 #450000 Big-Block Chevy Cast Iron Engine Block is manufactured to the following specifications: - Block Type: Big-Block Chevy - Block Material: Cast Iron - Cylinder Wall: Siamese - Supplied Bore Size: 4.500" - Supplied Stroke Clearance: 4.500" - Max Recommended Bore: 4.600" - Max Recommended Stroke: 4.500" - Max Recommended C.I.: 598 - Deck Height: 9.800" - Cam Bearing Bore ID: 2.120" - Camshaft Position: Standard BBC - Head Bolt Pattern: Standard BBC - Inside Head Stud Bosses: Yes - Lifter Bores: Standard BBC - Main Bearing Size: Standard BBC - Main Bearing Bore: 2.9375" - Main Caps: 4 Bolt Splayed - Oil System: Main Priority - Oil Cooler Holes: Integral to Block - Rear Main Seal: 2-Piece - Hydraulic Roller Provisions: Accepts- Gen V, VI Link Bar - Stud and Bolt Holes: Blind Tapped - Tapped Holes: Standard Thread & Pitch - Timing Chain/Gears: Standard BBC Gen IV, V, VI - Timing Cover: Accepts- Mark IV 10 Bolt - Fuel Pump Boss: Yes - Starter: Standard Location - Clutch Linkage Boss: Yes


Availability Available
Application Application Specific
UPC 00085347999477
Quantity Sold Individually
Timing Chain Type Standard Big-Block Chevy Gen IV, V, VI
Main Bearing Cap Bolt Quantity 4-Bolt
Availability Note Built to Order
Warranty 12 Months
Type Big-Block Chevy
Cap Material Ductile Iron
Emissions Code
Hazardous Materials Warning WARNING: This product can expose you to Chromium, Lead, and Zinc which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Cylinder Bore Diameter 4.500 in
Deck Height 9.800 in
Fuel Type Gasoline
Material Cast Iron