Trick Flow® EFI heat spacer kits help you fit your spacer between the upper and lower intakes to create a heat flow barrier. That keeps the air in the upper intake cooler and denser. Plus, these CNC-machined phenolic spacers provide clearance for taller valve covers. They're available in 3/8 in. and 1 in. thick versions and include gaskets and longer mounting bolts.

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Trick Flow Intake Manifold, R-Series, Tunnel Wedge, Medium Rise, Dual Carb, For Ford Big Block FE, 390, 406, 427, 428, Each

Trick Flow Intake Manifold, R-Series, Tunnel Wedge, Medium Rise, Dual Carb, For Ford Big Block FE, 390, 406, 427, 428, Each

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