Big Block

Mopar Performance Intake Gasket Heat Block-Offs, Gaskets, Manifold, Intake, Stock Port, Chrysler/ Dodge/ Plymouth, 361/ 383/ 400, Set

Intake heat block-off plates.
Mopar Performance intake gasket heat block-offs cover the lifter-valley in your engine block, to keep the heat being carried in the oil from being transferred to the bottom of the intake manifold. This keeps the manifold cooler, which lets it deliver a cooler, denser fuel-air charge to the cylinders. That, in turn, means a happier, more powerful engine.

Gaskets, Manifold, Intake, Stock Port, Chrysler/ Dodge/ Plymouth, 361/ 383/ 400, Set