Cummins Swap Kit for Smooth Cummins Diesel Engine Swap

Our 73–87 Chevy Cummins conversion kit is packed with essential components for a smooth Cummins diesel engine swap. It includes a transmission adapter and flexplate to mate a TH400, 700R4, or 4L80E transmission to a 1989-2002 6BT 12-valve or 24-valve Cummins engine.

Fits Truck Model Years: 73-87, C Series 2WD.
Fits Cummins Engine Years: 89-02.
Fits Transmissions: Chevrolet TH400, 700R4, 4L80E.
This kit is comprised of some of our most popular items for your 73-87 Chevy C Series Cummins conversion.
The Kit includes:

GF-C-S - Adapter and Flexplate- The 5.9 Cummins to Chevy Adapter Plate and Flexplate Kit accommodates 2002 and earlier Cummins 6BT engines bolting to a Chevy automatic transmission such as a TH400, 700R4, 4L80E, or similar transmission.
GF-C-MM - Motor Mount- Motor Mount- When installing a Cummins 6BT into your 1973-1987 Chevy pickup, this conversion motor mount allows for proper placement of the engine directly to the OEM frame mount isolators.
GF-BoltKitAdapter - Adapter Bolt Kit, Premium grade bellhousing adapter bolt kits to make mounting the adapter plate to engine as simple as possible. Set of 9 bolts.
GF-BoltKitFP - Flexplate Bolt Kit, -Flexplate bolts for mounting your Cummins 6BT to a GM Bellhousing. 12mm x 1.25. 25mm underhead length. Set of 8 bolts.
GF-BoltKitStarter - Starter Bolt Kit - Steel, zinc plated bolts constructed to strict engineering quality standards and serve as direct replacement bolts for replacing the Cummins 6BT starter. Set of 4 bolts with 3 washers.

Note: This kit ships in two boxes.

Ask your Question