lt1-427
I found a thread that I cant find now, but Mark Montalvo made 2 versions of a 421, one was the typical 4.125 x 4.030 and the other was 4 x 4.130 or something huge like that, it HAD to be a sleeved block. Gotta go to dinner now so no more tech for a few hours.
10 Second Club
Joined: Oct 2007
Posts: 2,630
Likes: 28
I asked my local machine shop about costs just 2 weeks ago. To sleeve 1 cylinder it was $140 a hole, and that is just to install the sleeve and trim the top to deck height. That price didn't include a bore and hone. Maybe they could cut a deal for doing all 8 but it would still be a $1500ish. I'm not sure if it's possible to do all 8 anyways. I didn't ask them if they ever replace every cylinder in a block.
I asked my local machine shop about costs just 2 weeks ago. To sleeve 1 cylinder it was $140 a hole, and that is just to install the sleeve and trim the top to deck height. That price didn't include a bore and hone. Maybe they could cut a deal for doing all 8 but it would still be a $1500ish. I'm not sure if it's possible to do all 8 anyways. I didn't ask them if they ever replace every cylinder in a block.
Wish there was someone with a lot of LT1 block knowledge to chime in here.
*If* you can get away with sleeving all 8 on an 327 block without causing other problems. I'd imagine you're pretty much guaranteed to hit water on an LT1 block, so IMO making it seal will probably be the issue.
Wish there was someone with a lot of LT1 block knowledge to chime in here.
Wish there was someone with a lot of LT1 block knowledge to chime in here.
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They have, My last block was sleeved, Just not big cubic inch. Most people dont because of build cost, 427ci will need some nasty heads and intake to make good power. Hell i had 2900 in my last set for my 383, your going to have 5k into a real good set of heads for that cubic inch.
TECH Enthusiast
Joined: Oct 2011
Posts: 556
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From: Apopka FL
you might be able to get away with it on a strong n/a combo. but i don't think it would hold at my power level. i may run buy the guys on yb and see if any one has done it.
10 Second Club
Joined: Oct 2007
Posts: 2,630
Likes: 28
I asked the guys at the machine shop if they could do all 8. They said they could but nobody ever does. I have heard from "internet lore", that the blocks loses integrity when you do all 8 at once. Not sure what to believe.
Just another situation where I wish I had unlimited time and money, I'd test all this **** for myself just for ***** and giggles.
I'd love an SB2.2 4.1" LT1 block. 750hp NA or I'd burn it.
TECH Enthusiast
Joined: Oct 2011
Posts: 556
Likes: 0
From: Apopka FL
the solution to our problems. "warning ford content"
http://www.351c.net/wiki/big%20boss%...012%201978.pdf
http://www.351c.net/wiki/big%20boss%...012%201978.pdf the solution to our problems. "warning ford content"
http://www.351c.net/wiki/big%20boss%...012%201978.pdf
http://www.351c.net/wiki/big%20boss%...012%201978.pdf the solution to our problems. "warning ford content"
http://www.351c.net/wiki/big%20boss%...012%201978.pdf
http://www.351c.net/wiki/big%20boss%...012%201978.pdf
Teching In
Joined: Feb 2013
Posts: 11
Likes: 0
On to the fantasy: There have been plenty of well built LT1's that have hit over the 1000hp mark. Most of them were smaller then 400ci let alone 427.
Tat correction: THAT
