MLS Header Gaskets Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block Square Ports, 1.85 Inch x 1.90 Inch Mr Gasket Differential and Pinion Shim Kit Our adjustable LCG Long Control

Our adjustable LCG Long Control Arms balance front caster angle and pinion angles as well as optimize rear pinion angles

engine temperature protection

Allen head stainless steel bolt mount flush to flange for custom look

Series: BR11

9XL Linkable Pro Harness

MLS Header Gaskets Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block Square Ports, 1.85 Inch x 1.90 Inch Mr Gasket Differential and Pinion Shim Kit Our adjustable LCG Long ControlMulti Layered Steel (MLS) exhaust Gaskets are designed for extreme cylinder pressures produced by high horsepower high compression turbo charged, supercharged and nitrous oxide injected engines. Manufactured from three stainless steel layers, they resist corrosion, will not burn through or push out and maintain maximum fastener torque retention. Stress formed inner and outer layer embossments act like springs that rebound under exhaust flange clamp