I have an 1986 5.7 liter 4 barrel OMC with the old style manifilds and elbows, anyone coverted to the newer volvo penta exhaust manifold / riser combo ? does anyone sell coversions adapters to get from the riser to the stock factory "Y" pipe ?? Any help would be great and I have one that has a small crank and both side start leaking at the flange on cyclinders #1 band #2 where there is only the one bolt between the front two cyclinders (Why not front bolt ?? on these manfolds ) Have replaced both side a coupole of times this season tjhey last about 150- 200 miles and then start leaking.
