Re: 18 8V BLOCKS (DREW67)
In the block, there really isn't any difference at all. The PF code had the 4 into 2 exhaust manifold while the RV had the very restrictive 4 into 1 manifold. As a result the RV made about 5-10 less HP. The bolt ups are the same between the PF and the RV, so you can put the 4 into 2 manifold on the RV without any problems.
In the block, there really isn't any difference at all. The PF code had the 4 into 2 exhaust manifold while the RV had the very restrictive 4 into 1 manifold. As a result the RV made about 5-10 less HP. The bolt ups are the same between the PF and the RV, so you can put the 4 into 2 manifold on the RV without any problems.
