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Chevrolet Performance Small Block Chevy Aluminum Race Blocks
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.
A-356 aluminum block
Splayed 4-bolt steel mains
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
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)
Billet wet sump rear main cap can be adapted to dry sump with plugs
Some roller lifters may require clearancing at top of lifter bores (.842'' diameter)
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