451 motor

needsaresto said
So then you were reffering to the block John? I could see it giving up if a cylinder were thin,IE; no sonic check and just run the block hoping it's fine? Or no hard block? I dont know if filling the block is needed either at this stage. Maybe in another 100 h.p or so? Lol,400 block can take a TON of power abuse..

Yes referring to the block , low decks can take more power it is said because of the shorter cylinders, but you will still have to deal with cap walk once you get over 600 hp on any of the blocks. Stay up on the tune , detonation will cause havoc on the bottom end.

earthmover said
do tell i am all ears ..i under stand your talking about the block..so please tell me so i know what to look for...the block is a rbre prep block with his mains.you know i hear all the time buy a race block ,buy a race block..but what about those guys that did buy the race block and put a window in it?????not trying to piss or start a piss match but i like to hear the reasons why when people say stuff like that..have you ran over a crank???? or have a stock block come apart??? all i ask is give me something other then never mind forget what i said......thats like opening a post just to piss on it...:D:D:D:D:D

Hopefully Barton sonic checked it and made sure it was a good core , a buddy of mine , RIP , had Barton do an 850HP 500" RB using a megablock , he had to take it back twice for the same problem for it to get repaired correctly .

I haven't driven over a crank , never built anything to drive with that much power , but have seen more than enough of those that have caught cracked mains to make me be leary of big power in stock blocks without the proper prep and even then it's no guarantee.

What casting number is the block ?