89+ 5.9L/6.7L 12/24/ Valve & CR Cummins Custom Girdle Kit

For Engine Drop Down: 03-07 CR and 6.7CR on Backorder with No ETA

For Main Stud Size Drop Down: Both on Backorder with No ETA  (Updated on 3/5/2025)

89-17 Dodge 5.9L/6.7L 12/24 Valve & CR Cummins Diesel Custom Girdle Kit

This is the GORILLA girdle, sold without main studs. 89-02 girdle pictured.

Recommended for High HP high RPM motors. Will improve ring seal under strenuous load conditions such as sled pulling or drag racing due to overall stiffening of the block.
This kit requires the use of extra-long main studs to integrate the mains.

03+ 5.9L/6.7L Commonrail girdles DO NOT integrate the oil pan bolts. 

You must either STAMP the oil pan or hammer the stock pan into the longer main studs to allow for proper oil pan clearance.

89-02 Kits Includes:                                                                  03-17 Kits Includes:

1-Custom Block Stiffener/Girdle-Pictured Above                      1-Custom Block Stiffener/Girdle-Not pictured
2-Pan Gaskets                                                                          1-Pan Gasket
*Pan Bolts, Long                                                                       1-Pickup Tube Gasket
2-Suction Tube Gaskets                                                           14-Nuts,Washers, & Spacers
36-Long Pan Bolts                                                                    1-End of Block Spacer
2-Long Oil Sump Bolts

Does not include main studs!

Girdle thickness is just over 1/4 inch.