If your passion lies with street rods, muscle cars, racing, or a project vehicle somewhere in between, JASPER has the crate engine, transmission or a combination of both that will give …

Today we are the nation's largest remanufacturer of gas and diesel engines, transmissions, differentials, air and fuel components, marine engines, sterndrives, performance engines, and electric motors.

JASPER® PERFORMANCE CRATE ENGINES: STOCK, CLASS I, STOCK PERFORMANCE & CLASS II JASPER® offers 4 levels of engine performance models for drivers to choose from with the complete information listed below for your convenience.

Gen III, IV, and V engines are used extensively in such popular applications such as the C/K Series pick-up trucks, Tahoes, Suburbans, and Yukons. JASPER also offers an AFM Delete option for the following GM Gen IV and V 5.3L, 6.0L, and 6.2L engines.

JASPER remanufactured gas engines are built to meet or exceed original equipment manufacturer measured tolerances, and most applications are covered by a 3 year | 100,000 miles nationwide, transferable parts and labor warranty.

Whether you're looking for an upgrade, or your old tired engine finally bit the dust, Bob's Red Bluff Transmissions has the quality mechanics you need and the right choice for you in JASPER® Engines which is the nation's leading provider of remanufactured engines.

A JASPER® remanufactured gas and diesel engines, transmissions, differentials, rear axle assemblies, air and fuel components, marine engines, sterndrives, performance engines, and electric motors are taken down to the basics with most wearable parts replaced.

JASPER® offers 4 levels of engine performance models for our Baton Rouge drivers to choose from with the complete information listed below for your convenience.

JASPER® remanufactured gas engines are built to meet or exceed original equipment manufacturer measured tolerances, and most applications are covered by a 3 year/100,000 mile nationwide, transferable parts and labor warranty.

JASPER® offers 4 levels of engine performance models for our Conyers drivers to choose from with the complete information listed below for your convenience.