The CZP Thermo-Tork Heat Insulating Gasket sits between the upper and lower plenum halves. This gasket helps to reduce intake air temperatures and heat soak from continuous high RPM driving and seals better than the thin OEM steel gasket especially when dealing with imperfect flanges.

Thermo-Tork Nonasbestos Gasket Material is a controlled-swell material with latent cure styrene butadiene rubber binder and a blend of Aramid and cellulose fibers. It conforms well to irregular flange surfaces and is intended for water and oil applications with short duration maximum temperatures up to 290°C (550°F).

Stats for nerds:

• Density, g/cc (lb/cu.ft): 1.36 (85) (min.)
• Compressibility, % (at 34.5MPa): 12-25
• Recovery, %: 25 (min.)
• Tensile Strength, AMS, MPa (psi): 8.28 (1200) (min.)
• Fluid Resistance, IMR903 Oil: 30-70% change in thickness (max.)
• Fluid Resistance, Fuel B: 20-50% change in thickness (max.)
• Binder Type: Styrene Butadiene