Originally Posted by Thelma133
Are these expansion issues with main/rod bearings older bmp or ALL of them? I just received mine and haven’t started any work on it yet.
The word i got was the newer blocks, being aluminum, have the same growth issues as the others, so i would check with who ever sold you the block, or whoever has been building them.
I got mine from Todd at Marsh Performance.


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky