Hi all,
To preface, I have searched tirelessly, to no avail.
As far as I can tell, RB25 S1, S2 and NEO blocks are identical. The Neo heads are obviously very different. I have an S2 25 head and have found a good deal on a NEO block. I can't seem to find a definitive answer as to whether I can use the Neo block with the S2 head. I'm going fully forged and am looking for confirmation that the Neo block and crank will accept forged non-Neo 8.5:1 pistons and rods and not run into problems with the S2 head. As far as I can tell, this should have the same outcome as an S2 block with the same rods and pistons.
Preemptively, buying a Neo head is a last resort due to my location and freight costs.
Cheers