We know the new Indy/RHS heads are larger than the std Mopar heads of the past, 894, 915, 576 and so on. But they are smaller than the W2 series heads. I feel the new Indy/RHS heads are an excellent replacement for the older std castings on the 340 and 360 engines. I believe that is what they were mostly aimed at. Larger but not too large for the 340 and 360 engines. But..are they large enough for the stroker motors we are putting together ? I have seen the dyno numbers for stroker motors with these new castings, and they are impressive, but, ..are they enough for these larger small blocks. W2's might be a better choice, but much more expensive , for very high output engines. What say you ?
Terry