Gasket Exhaust Riser To Manifold PCM 454 & All GM Big Blocks RM0099
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5.0L - 5.7L - 7.4L - 305 - 350 - 454 GM EXHAUST PCM
Gasket Exhaust Riser To Manifold PCM 454 & All GM Big Blocks RM0099
GASKET EXHAUST RISER TO MANIFOLD
PCM ALL BIG BLOCKS
454, 460, 502, 8.1
RM0099 Sold Each
The blocked water passage goes towards the exhaust outlet.
The same gasket used for the 3" and 3.5" risers