Big-block-style power from a small-block engine!
If you’re looking for a small-block Chevy that makes big-block power, we’ve got the engine for you! For the ultimate GM Performance Parts small-block crate engine, choose the ZZ383 – a combination of Fast Burn aluminum performance heads and a 383″ stroker small-block that can add up to 425 horsepower and 449 lb.-ft. of torque.
A carefully engineered balance of torque-producing bottom-end power and horsepower-inducing Fast Burn cylinder heads combine for the ZZ383/425′s stellar performance statistics. The Fast Burn heads have large 2.00″/1.55″ valves and specially designed chambers that draw in lots of air and fuel, burning the mixture quickly and completely. It`s a combination that generates great mid- and high-rpm power, which, when combined with the 383 cubic inch displacement, creates an awesome all-around performer.
The ZZ383 has a specially modified engine block and 3.80″-stroke crankshaft, which produce 383 cubic inches of pure performance. The reciprocating assembly is comprised of heavy-duty components including a 4340, nitrided, and induction-hardened forged crankshaft, and unique, heavy-duty powdered metal rods. It`s 425 horses of bulletproof performance.
With the ZZ383/425, you get the power of a big-block with the size and weight of an aluminum-headed small-block.
If you`ve never driven a car with a stroked small-block and the top end components to support it, now is your chance!
**Applications have not been validated. They are merely suggestions of how you might enjoy your GM Performance Parts crate engine. Some applications may affect engine warranty. Some applications may not be emission legal; check state and local ordinances.