Small Block Chevy Powerflow Risers Type A 

Small Block std. Stainless steel "A" risers are designed for stock Mercruiser Bravo exhaust tip locations. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds. Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers. (Sold in pairs)