Yellow Bullet Forums banner

1 - 5 of 5 Posts

·
Registered
Joined
·
355 Posts
Discussion Starter #1
I just picked up a std bore 4 bolt 454 that looks to be a 1988 model. from what I can tell its still a 2 pc rear main and a mark IV block. are these as strong as the older blocks? thanks
 

·
Registered
Joined
·
286 Posts
I'd like to know this as well. I picked up a block with same castings. Hopefully gonna put 1250hp to the ground with it.
 

·
Registered
Joined
·
3,336 Posts
We have a customer we built a 98mm Garrett thumper for and he has been putting down 1200rwhp with that block. Not sure how long it will last, but so far it has done it a few times. But dyno and running it on the track are two different things.
 

·
Registered
Joined
·
286 Posts
Can you share some of his setup?
 
1 - 5 of 5 Posts
Top