General Motors announced the ZZ632 crate engine in late 2021. This gave hot rodders and racers an off-the-shelf, high-horsepower, large-displacement option they could order that runs on pump gas.
That’s great, right? Yes, it is.
However, this engine is based on a GEN 5 or GEN 6 style block, which has a one-piece rear main seal. That means you need an oil pan that fits the block, clears the stroke, delivers performance, and fits the car it’s going into.
That’s where some of our oil pans come into play.
The three oil pans that Doug goes over in the video below give builders options that clear the 4.75” stroke crank, provide excellent oil capacity and control, and offer proper chassis fitment.
The 21051 is the pan you’ll need for your street car. The sump dimensions make it ideal for vehicles with stock crossmembers. At 8” deep, 10.625” wide, and 8.75” front to back, it holds 6 quarts of oil (not including the filter) and, most importantly, provides the clearance needed to fit the ZZ632 in
