This Chevrolet Performance intake manifold gasket set seals the intake manifold to oval-port big block Chevy cylinder heads. It is a composite gasket set sold as a kit.
Specifications:
- Intake manifold gasket set
- 1.82 x 2.05 in oval port
- Composite
- Big Block Chevy
- Sold as a kit
- Part number: 12366985
Applications:
- Big Block Chevy (oval port heads)
FAQ
What engine does gasket set 12366985 fit?
It fits oval-port big block Chevy cylinder heads.
What is the port size?
The port opening is 1.82 x 2.05 in.
What material is it?
It is a composite gasket set.
Is it a complete set?
Yes, it is sold as a kit.

