This Chevrolet Performance 2nd-design camshaft retainer plate controls camshaft end play on Small Block Chevy roller-cam engines, including GM ZZ3 and ZZ4 crate engines. It is a steel plate with a 3.294 in bolt center, and is sold individually.
Specifications:
- Type: Camshaft retaining plate (2nd design)
- Bolt center: 3.294 in
- Material: Steel
- Finish: Natural
- Engine family: Small Block Chevy
- Engine fitment: GM ZZ3 / ZZ4 engines (factory roller cam)
- Quantity: Sold each
- Part Number: 10168501
Applications:
- Small Block Chevy
- GM ZZ3 / ZZ4 engines
FAQ
What is the bolt center on retainer plate 10168501?
Part 10168501 has a 3.294 in bolt center.
What engines does this 2nd-design plate fit?
It fits Small Block Chevy roller-cam engines, including GM ZZ3 and ZZ4 crate engines.
How is the 2nd design different from the earlier plate?
The 2nd-design plate 10168501 uses a 3.294 in bolt center for ZZ3/ZZ4 roller-cam engines, while the earlier plate 10088128 uses a 3.620 in bolt center for ZZZ/ZZ1/ZZ2 engines. Confirm the bolt center before ordering, as the two are not interchangeable.
What does a camshaft retainer plate do?
It bolts to the front of the block and limits camshaft fore-and-aft movement, holding correct end play during operation.
What is the plate made of?
It is steel.

