duckmnn
Member
- Jul 21, 2010
- 553
- Boat Info
- 270sundancer 1996
- Engines
- 454 B3
So I got an updated set elbows that replace the old style on my 96 7.4 .Mercruiser tech gave me part number . Problem is my boat use 3 inch riser block between elbows and manifold . Plus old was fastened with studs . New one are about 6” bolts . But bolts need to be about 10” to use riser blocks ?? Any ideas ? Thanks