A new GM valve body is now arriving at dealerships, GM Authority has learned. The arrival of the new part marks a critical step toward resolving a widespread parts shortage that has left many GM truck ...

Note that the 10-speed and Allison-branded 10-speed automatics used in the Silverado HD and Sierra HD use a different valve body. Prior to the Gen 3 part, GM was running the Gen 1 valve body (part ...

Modular engine swaps are becoming a very hot trend, however, adapting an engine to fit a car it was never designed for challenges builders to blend factory components with fabricated parts to make the ...