Jasper Engine & Transmissions Jasper, Indiana

JASPER has been building engines and transmissions since 1942, and in that time we've learned a few things... like, how to get every inch of power out of our performance products. Our Class II performance crate engines are designed to bring your vehicle to the next level. 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 you the performance you need and fit your budget. We will also build custom applications. Here are some of the attributes of JASPER's Class II Performance Crate Engines:

The Class I version of the JASPER PERFORMANCE Engine is for the individual who wants more performance than stock but nothing too radical in camshaft or engine design. The Class I engine does not use a radical camshaft. The camshaft included with the engine is a torque-economy type that provides better everyday performance than stock without sacrificing smooth idle and driveability. This type of cam is also compatible with today’s computer controlled engines.

JASPER Performance Transmissions - JASPER offers two levels of performance transmissions. The Class I Performance transmission is for the individual who wants more performance than stock, but nothing too radical in shift pattern. The Class I transmission does not have a drastically altered shift but will provide firmer, more pronounced shifting. The Class II Performance transmission is for the serious performance minded individual who wants a transmission that will meet his particular application. These transmissions are built with heavy-duty performance in mind. Special components and procedures are matched to obtain maximum performance for your engine application.

The staff of JASPER Authentic Custom Drivetrains, a division of Jasper Engines and Transmissions, understands the pride and satisfaction that our customers have in the ownership of a classic vehicle. We show that understanding in our attention to detail, the quality of our work and in making sure that you will be satisfied with the experience you have with us – from the interaction with our staff to your completed transmission. We offer custom “days gone by” remanufactured transmissions for your special project. The transmissions we can build for you include: Borger Warner Three Band, C4s, Dual Range, Dynaflow, Ford-O-Matics, Hydramatics, Jetaways, Jensens, Roto Hydramatics, Powerglides – cast and aluminum, PowerFlights, and more. The Authentic transmissions we build can be found in Buicks, Cadillacs, Chevys, Chryslers, DeSotos, Dodges, Fords, Hudsons, Kaisers, Lincolns, Mercurys, Nashes, Oldsmobiles, Plymouths, Pontiacs, Ramblers and Studebakers.

Jasper Engines & Transmissions has the right transfer case for you at the right time at a very competitive price. We offer all available models for Chrysler, Ford, GM and Jeep applications from such manufacturers as New Process, New Venture and Borg Warner. JASPER remanufactured transfer cases are precision built to provide you with the quality, value and performance characteristics that meet or exceed those of the original manufacturer. JASPER assures the quality of your remanufactured transfer case through such procedures as: 100% case inspection for cracks stripped threads and internal wear; thorough inspection of all internal parts, including main shaft straightness; 100% viscous clutch torque testing; water immersion and pressure testing to assure there are no leaks in the case; and spin testing of every unit for shift ability assurance and noise detection. Jasper Engines & Transmissions offers transfer cases for both 4-wheel drive and all wheel drive applications. Most popular units are in stock either at our distribution centers or at one of our nationwide branch locations. Best of all, JASPER remanufactured transfer cases come with our 3 Year100, 000 Mile Nationwide Transferable Warranty. Off-road applications are covered by our 18 Month100, 000 Mile Warranty. Please visit our warranty page for complete coverage information on our transfer cases and extensive line of quality remanufactured engines, transmissions, differentials and more. Our optional Premium Service Plan provides allowances for such items as towing, car rental, fluids and premium labor should a problem arise. Click here for details and limitations.

Since JASPER MARINE, a division of Jasper Engines & Transmissions, entered the marine market with remanufactured stern drives in 1989, we have continuously introduced new products that would meet the needs of boaters like you. JASPER MARINE is now pleased to introduce remanufactured outboard motor powerheads for YAMAHA applications to its line of quality remanufactured inboard and IO engines, stern drives and outboard lower units. Outboard motor powerheads are available for both two stroke and four stroke applications and include such four stroke models as the YAMAHA 75, 80, 90, 100, 115, 150, 200 and 225; and two stroke models with 175, 200, 225, 250, 300 horsepower motors. All of the aforementioned powerheads will be available on an exchange basis. All outboard motor powerheads are 100% tested for optimal performance reliability. Four stroke motors include a finishing gasket set, oil pump and screen. Cylinder heads are factory installed. The motors include the timing belt and engine timing will be set. Two stroke engines also come with factory installed heads and include the finishing gasket set. Outboard motors from JASPER MARINE are covered by a 12 Month Parts and Labor Warranty for your assurance of quality and reliability.