Embossed Steel & Composite Intake Manifold Gasket SetSuit Big Block Chrysler 361-400 1.23" x 2.27" (.015")Brand: FELPROPart Number: FE1214Description: Fel-Pro embossed steel laminate intake gaskets are harder to trim to match custom ports but the added structural integrity allows them to maintain shape under high vacuum or long exposures to oil and fuel.