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CHEVROLET PERFORMANCEPART NUMBER: 809-24502495
Small Block Chevy Aluminum Race Block Tall Deck (400 Main)
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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Tall Deck
- Small Block Chevy Aluminum Race Block
- Tall Deck (400 Main)
- 4.117'' Rough Finished Bore (4.135'' Maximum)
- Dry sump use only
- 4.125' maximum stroke
Chevrolet Performance Small Block Chevy Aluminum Race Blocks combine the competition strength of cast iron with the weight savings of aluminum. This allows you to build a more balanced race car, improving chassis dynamics without sacrificing power.
Features:
- A-356 aluminum block
- Splayed 4-bolt steel mains
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- Priority main oiling system
- Tested to over 800 horsepower
- CNC-machined for +/-.001'' tolerances
- Siamese bores with increased wall thickness
- Centrifugally-spun cast iron cylinder sleeves
- Extra-thick main bearing bulkhead machined at 5°
- Enlarged cam bosses allow machining for the use of larger bearings
- Extra-thick deck surfaces with blind-tapped head bolt holes improve head gasket seal
- Cylinder decks, front and rear of case, oil pan rail surfaces, and head dowel pins are blueprinted Technical Notes
- Oil dipstick holes are not drilled
- Check timing system clearance before engine assembly
- 2-piece rear main crankshaft and pre-1986 oil pan required
- 2.000'' OD cam bearings required at all five locations (1.867'' ID)
- Some roller lifters may require clearancing at top of lifter bores (.842'' diameter)
Part TypeEngine Block
Product LineChevrolet Performance SBC Aluminum Race Engine Blocks
BrandCHEVROLET PERFORMANCE
Part CategoryPerformance Parts
Main Journal TypeOEM
Engine Block StyleStock/OEM standard Deck
Engine Block MaterialAluminum
Engine Block Weight (Lbs.)101
QuantitySold individually
Raised Cam LocationNo
Freeze Plugs IncludedNo
Main Bolt Style4-bolt
Deck Height9.525 in (241.935 mm)
Main Bearings IncludedNo
Main Cap MaterialSteel
Rear Main Seal Style2-piece
Main Caps IncludedYes
Finished Cylinder BoresYes
Cylinder Bore Diameter4.125 in (104.775 mm)
Cam Bearings IncludedNo
Main Cap Fasteners IncludedYes
Vendor Part Number24502495
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
