Complete Mercruiser V-8 GM 454/502 manifold Set with 4 inch risers

Model: GLM-58242

Replacement 454 Chevy Mercruiser Exhaust Manifold with 4 inch risers

Manifold Sets with 4 inch Risers - Without Spacer

For Mercruiser GM V8 454 Big Block Raw/Fresh Water Cooling System.

Set includes two Manifold, two 4 inch Risers, Studs and Gaskets