MerCruiser V8 305 5.0L and 350 5.7L
Chevy Marine Exhaust Manifolds
1983 to 2002
Replaces 860246A10 860246A15
The manifold above is known as the "Center Riser" manifold. It replaced
the MerCruiser "LOG" manifold for the 1983 model year.  The "log style"
manifold has the riser at the back of the manifold.
The Moore Performance manifolds are an exact replacement for the 1983
- 2002 Mercruiser 305 and 350 Small Block Chevy manifolds.  The
external dimensions are identical with all holes drilled and tapped like
the original manifolds.               
Mercruiser 305 350 Manifold
500-1-230                  $149.95
Mercruiser exhaust manifold Chevy V8 dimensions
Mercruiser exhaust manifold chevy V8 cutaway
Mercruiser hose fitting and drain plug
Each manifold includes a
stainless steel manifold-to-head gasket, a
stainless steel manifold-to-riser gasket, a 1-inch
hose water inlet fitting and four manifold-to-head
installation bolts.  
Mercruiser riser gasket
Chevy exhaust manifold gasket
Mercruiser exhaust manifold chevy V8 305 350
Mercruiser exhaust manifold chevy V8 diagonal
Mercruise exhaust manifold Chevy V8 front diagonal