Quote Originally Posted by pat mccarthy
did you read any thing i posted ? page 2 . 4.320 bore 4.375stroke =513 short deck. you do not need a four bolt main i have done over 40+ builds with out four bolt mains over 650+hp it would be nice to have , i have blocks right now to build any thing from 468 to 588 short deck .or 572 to 638 would be tall deck if you want some thing you can e mail me .i have built many big blocks. yes jonnny O you are rigth .0125 is a big move it would be1/2 full of block rock if i did it . but i did have ?one 454 i had to thick sleeve and bore it to 4.500 and there was still some wall there .not to say one would go that far but ?4.440 and some block rock fill to the top some blocks can take a 0125 bore but that is not many and the new mark5-6 i would not go past .060 on them less it is a 502 block and still that alot for them to
When I use to bracket race I had a 468 with a 2-bolt main and an ARP stud kit.I shifted at 6,600.Every winter when I would pull it down to re-ring it the caps where still very tight.After the 3rd. season on it I had to do a very small amount of line honing.On the street it would last damn near forever.