Replacement Sealing Foam

The Moroso Replacement Sealing Foam (MOR97070) is a precision-engineered gasket material designed for high-performance automotive applications where engine bay vibration and thermal cycling demand reliable sealing integrity. Whether you're rebuilding a carburetor base plate, sealing intake manifolds, or protecting sensitive engine components from moisture and fuel vapor, this replacement foam serves as a critical barrier in any serious engine modification project. Mechanics and enthusiasts rely on Moroso's engineered solutions to maintain factory-correct fitment while ensuring superior long-term durability under demanding conditions.

This specialized foam formulation is engineered to withstand repeated thermal expansion and contraction cycles typical of high-output engines without degrading or losing compression set. The material resists fuel, oil, and coolant exposure, making it ideal for carbureted and fuel-injected applications alike. At 1.41 lbs with compact dimensions (15.35 x 4.8 x 15.6 inches), the Moroso foam provides sufficient coverage for multiple gasket applications while remaining easy to handle and cut to custom dimensions. The closed-cell structure prevents moisture absorption, maintaining consistent sealing performance across seasonal temperature swings and sustained highway driving.

Restoration specialists, engine builders, and street performance mechanics standardize on Moroso replacement foam for carburetor gasket kits, air cleaner base seals, and intake manifold applications where OEM foam has deteriorated or lost elasticity. If you're experiencing fuel seepage around carb baseplate gaskets, vacuum leaks at intake flanges, or coolant weeping at manifold surfaces, this Moroso foam delivers the precise compression and durability needed to restore proper engine sealing. Installation requires only careful trimming and positioning before final bolt torque—no special tools required. Compatible with both classic carbureted platforms and late-model swap applications, this replacement sealing foam is an economical insurance policy against costly resurface work.