GLM 454 Chevy Mercruiser Marine Exhaust Manifold

Description

51240
GLM Marine Exhaust Manifold for Mercruiser 454 502 7.4 8.2 V8
Fits 1981 up to early 2000's with wet joint. Does NOT fit dry joint applications.
GLM's tuned manifold improves exhaust flow over the oe for better performance and economy as well as providing 40% more cooling surface area for a cooler running engine.
GLM offers a 3 year manufacturer's warranty.