The Wheeler Sportsman Series street crate is the premier pump gas motor we build With increased compression and aluminum heads, this is the next level of horsepower and torque. With a more aggressive tail pipe than our performance series version and race engine personality, these are the ultimate true pump gas power plants. With all the quality components you would expect in a Wheeler crate engine, we have added forged flat top pistons, aluminum heads and a more aggressive hydraulic roller cam grind for the ultimate street performance experience.