IMCO Marine Exhaust Powerflow S-Pipe System Small Block ChevyPowerflow manifolds are manufactured using the finest materials and most advanced techniques available. The high quality aluminum manifold castings feature water jackets that surround each exhaust passage, including the port, to eliminate the possibility of burn out. The outside manifold surfaces are then coated with the highest quality epoxy powder coating available, creating a part that not only is highly corrosion resistant, but good looking as

Our tank boxes are made from 6061-T6 aluminum

and 3-3/8Ó tall and come with a 3Ó K&N washable cotton gauze filter element

1 7/16" with square bore hub adapter or Mercury #6 prop shaft

Fabricated from high quality stainless steel and polished to a high luster finish

Lower Your IMCO SC -2" Lower by 1"

DPDT On-On

Dual Tandem Oil Cooler - 2" Diameter

and domed glass lens

NOTE: DOES NOT FIT ALPHA GEN II

Used to block off the exhaust outlet on Mercruiser Bravo Gimbal housings when removing the stock exhaust "Y" pipe for through transom exhaust applications

Due to differences in mounting surfaces

SPDT On-Off