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Product Information
Manufacturer: GLM Products, Inc.
Regular Price: $1452.38
Sale Price: $1,089.99
Mercury Part Number: N/A
Product Description
For Post-1986 Mercruiser GM V8 Big Block
-4 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.
In GLM's Mercruiser replacement 4 inch riser, there are two
additional water jackets. This allows a higher volume of water
to flow through the riser, keeping the engine cooler.
*All manifolds and risers are powdercoated black for maximum corrosion protection*
**Cast Iron manifolds and risers come with a 3 year warranty**
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