I agree with what has been said, but imagine my suprise when I picked up a "R" block small block stroker engine built by stanton engines, and it has what looks like regular grade 8 gold colored head bolts. NOT factory bolts and NOT arp..... This was a 10k dollar mopar "crate" motor.
Interesting.... Let hope they are not using Chinese grade 8's..... I think this has the magnum heads, right? If so, it oils the rockers through the pushrods so the straight shank bolts would not effect rocker oiling.