MERCRUISWER COMPLETE EXHAUST MANIFOLD SET GM B-B 58243

Sale price $830.00 Regular price $1,325.00

Product Description
For Pre-1986 Mercruiser GM V8 Big Block
-3 inch elbow
-3 inch spacer

In the V8 GM Big Block, GLM's fully tuned 
design guides exhaust gases directly to 
the riser without turbulance and back pressure.
This increases the engine's performance.
These GLM manifolds also feature an additional 30%
increase in water cooling area that decreases the 
manifold's overall body temperature significantly.

All manifolds and risers are powder coated black for maximum corrosion protection

Cast Iron manifolds and risers come with a 3 year warranty