GLM Manifolds
GLM Manifolds are Superior in the Aftermarket
Marine Parts Industry. 
Designed to Increase Performance,
Reduce Back Pressure
and Add More Horsepower to Your
Engine!

Our fully tuned design guides exhaust gases directly to riser
without turbulence and back pressure. This increases the engines
performance up to 10%. In the meantime, an additional 40% water
cooling area will decrease the entire manifold body temperature
significantly
EnginePartsCenters is offering this GLM exhaust manofold for the Volvo Penta MODEL AQ &
BB 200, 205, 211, 231, 225, 260, 271, 290, 311, 500, 501, 570, 571,
572 - GM 305/350 CID, V8 S.B. (1993 & BEFORE.)
This listing includes exhaust manifold and FULL manufacturer's 3-year warranty. This
manifold set can improve the performance of your stock engine and
improve fuel efficiency at the same time. Kit contents are listed
below:
- (1) 51630 - Exhaust Manifolds - OEM #856883
- (1) 13970 - Elbow Fittings - OEM #3852538
- (1) 13983 - Straight Fittings - OEM N/A
- (1) 13992 - Drain Plug Kits - OEM # N/A
We are adding new part numbers daily. If you
don't see what you need, please call or eMail us. We will be glad to help in
any way!
800-821-1063 or
btoc@internalengineparts.com
THANK YOU for allowing us
the opportunity to earn your business!