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Details: The ZZ454/440 offers tremendous value in a big-block crate engine. Based on the proven 454 HO with its Gen VI 454 block, the addition of GM Performance Parts Signature series aluminum heads reduce weight and increase horsepower to 440, up from the 454 HOGÇÖs 425.
The ZZ454 shares its forged crankshaft and connecting rods with GMPPGÇÖs 454 HO and the family of famous 502 crate engines, so you know itGÇÖs strong. Forged pistons fill the block, and a steel roller camshaft times the valves. Complete with dual plane intake manifold, water pump, torsional damper and automatic transmission flexplate, the ZZ454 is one value packed big-block crate engine.
With its throttle responsive 9.6 to 1 compression ratio, the pump gas friendly ZZ454 is a great choice for muscle cars, bracket racers and off-road truckers. Just add your 850 CFM carb, GM HEI distributor, and 2 1/4" primary headers and youGÇÖre ready to rip.
The ZZ454/440 in intended for use in 1978 and earlier preemission street vehicles and any year off-road vehicles.
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454 cid ZZ454 440HP/500 Man to Pan
