Give your ride the extra twist only a stroker can deliver with these ATK High Performance GM 383 Stroker 425HP Stage 2 crate engines. These engines are built around quality components and professionally assembled to give your car or truck the kick it needs. These engines are capable of producing 460 ft.-lbs.--that's enough torque to get you rolling in a cloud of tire smoke!
These ATK High Performance GM 383 Stroker 425HP Stage 2 crate engines include the following:
* Handpicked, remanufactured blocks
* Performance aluminum cylinder heads
* Intake manifold
* Nodular steel crankshaft and 4340 I-beam connecting rods
* Forged pistons
* Hydraulic roller camshaft
* Cam lift- .528 int./.536 exh.
* Cam duration @ 0.50- 220 int./224 exh.
* 10.1:1 compression
* Valve covers
* Timing cover and timing set
* Oil pan, pump, and pickup tube
* Water pump
* Front damper and flexplate
All horsepower and torque numbers advertised on our website are provided by the crate engine manufacturer. These numbers were achieved on a professionally operated dynamometer to compensate for variables like altitude, temperature, relative humidity, vapor pressure, and barometric pressure, all of which impact measured horsepower and torque. If you do not purchase a complete crate engine, the selection of additional components, and how those components are tuned, will have an impact on measured horsepower and torque. Ignition and fuel system components, as well as the fuel octane and quality of the fuel that you select, will impact the numbers. Please understand that, while horsepower and torque numbers are repeatable within reason, they will most likely not be reproduced identically.