Is a 2 bolt 454 block worth building?
09-01-2015 | 08:34 AM
#11
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Joined: Apr 2002
Posts: 425
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From: nj
I've read and read until I see crossed eyed. I know in a car application a studded 2 bolt block can handle close to 1000 hp but these are short bursts down the track, not going 5000 rpm or more for extended lengths of time like in a boat. I'm having a hard time finding some 4 bolt 454 or 427 blocks. I'm sure they're around but people don't want to give them up. I was thinking about a studded 2 bolt block with main cap girdles. Any thoughts, experiences or suggestions would be greatly appreciated!!
bbc 4 blot blocks and 2 bolt blocks are the same you could either buy after market main caps or gm 4bolt caps and have the block line bored and taped .
i have a gen5 454 block also $350
09-01-2015 | 09:54 PM
#16
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Joined: Jul 2008
Posts: 165
Likes: 1
From: Baltimore, Maryland
The only difference between the 2 bolt and 4 bolt blocks is the main caps and the steel crank instead of a cast crank. I ALWAYS get 2 bolt blocks and put 4 bolt main caps on. My machine shop drills and fits the 4 bolt caps then align bores for the crank. Never had one come apart even using stock bolts. Besides 2 bolt blocks most people think are junk and will almost give them away.
09-02-2015 | 05:51 PM
#19
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Joined: Apr 2006
Posts: 10,042
Likes: 712
From: Toledo Oh
here you go... Gen 6's are all 4 bolt blocks and rollers......
http://www.offshoreonly.com/forums/s...ocks-sale.html
http://www.offshoreonly.com/forums/s...ocks-sale.html
