Browse our performance Jeep crate engines below. If you have a question or don't see the engine you are looking for, email us or call us at 1-800-275-7371 and we will be happy to answer your questions. We can build your engine to suit your needs, so please contact us if you would like a custom engine quote.

If you are looking for a stock replacement engine, be sure to visit our Replacement Jeep / AMC Engines page.

Head Porting Means More Horsepower

Head porting is a process for shaping or enlarging the intake and exhaust head ports to raise combustion. This increases power and torque dramatically. By enlarging the intake porting , there is greater air and fuel mixture for ignition.

The flow bench tests the flow of that air and fuel mixture and allows us to maximize that mixture to raise power. It also gives valuable information for correcting any issues such as portal design.

Porting the heads should also increase miles per gallon . The principle is that if the volume of air is increased , while the velocity is decreased, the air/fuel mixture burns more efficiently. The volume and velocity for each port depends on the engine and cylinder head design.

This one process can enable an engine to achieve much greater power at a price that will almost pay for itself in fuel savings.

Ask Us an Engine Question

Please enter the information below to ask us an engine question or request a free quote. The Zip Code is required in order to determine your shipping cost. Please enter any special instructions, such as shipping or other relevant information. All orders placed outside of the United States must be paid by Wire Transfer. Please call 1-800-275-7371 for details, assistance, or to discuss your engine via the phone.