Posted by Glen of Idaho [70.41.244.80] on Monday, November 09, 2015 at 22:15:56 :
In Reply to: M37CDN, 251s, and Unleaded Gas posted by Greg Coffin [67.176.56.44] on Monday, November 09, 2015 at 21:26:10 :
The machinist doing my poly 318 and 230 said it won't matter he says most of the new engines don't run hardened seats.