Big Block Chevy Square Port SS Exhaust Gaskets-Sold in Pairs
Multi-Layered Steel (MLS) Marine Exhaust
Gaskets are designed for extreme duty applications as well as high
cylinder pressures produced by high horsepower applications. Perfect for
high compression, super-charged, or turbo-charged,engines.
Manufactured from three 304 stainless steel layers, resists
corrosion, will not burn through or push out and maintains maximum
fastener torque retention
Stress formed inner and outer layer embossments act like
springs that rebound under exhaust flange clamp load, creating force to
seal excessive exhaust pressure produced from cylinder heads
Withstands different combination's of cylinder head (aluminum)
and exhaust header or manifold (steel) materials, will not deteriorate
from scrubbing action caused by different expansion rates in aluminum
and steel material