LT1 Bowtie Block
Registered User
Joined: Oct 2006
Posts: 654
From: Snow Belt, PA
more displacement =
he probably just choked out his cam with stock heads or something stupid like that
it's definitely worth it if you can afford it
Registered User
Joined: Aug 2007
Posts: 746
From: Bennett N.C.
https://www.camaroz28.com/forums/showthread.php?t=569113
he did build a good motor just some of the negative comments
he did build a good motor just some of the negative comments
Registered User
Joined: Jul 2007
Posts: 321
I agree!! I would LOVE to have a 427 ci LT1 motor! Since the LT1 block isn't TOO much different than a SBC, I wouldn't think it would be too difficult to make one given they start with one of their large bore SBC castings (or this block of course!), and make a new casting?
They would never sell enough to offset the cost of R&D and production. If you are starting from scratch you might as well get an LSx or traditional gen1 block and end up with a much larger aftermarket available to you for building.
Still would be sweet to have a 454 LT1!!
Registered User
Joined: May 2006
Posts: 1,855
From: Ohio
Serious question?
Besides the fact a typical LT1 block can be up to 396CI before you are seriously pushing the limits. (bigger has been done, I recall a 406(8?) that was built earlier. But I dout anyone has built a 454 LT1 if its even possible.
Besides the fact a typical LT1 block can be up to 396CI before you are seriously pushing the limits. (bigger has been done, I recall a 406(8?) that was built earlier. But I dout anyone has built a 454 LT1 if its even possible.
West South Central Moderator
Joined: Oct 2000
Posts: 3,371
From: Kilgore TX 75662
there have been a few 427" LT1s made. I remember talk about it ages ago that one guy made 2. 1 with big bore and 1 with big stroke.
4" stroke LT1s aren't common, but they are being built.
4" stroke LT1s aren't common, but they are being built.
Registered User
Joined: Jul 2002
Posts: 3,768
From: Friendswood, TX, USA
Well I don't think I have money coming out of my *** and I didn't think it was all that much considering what good aftermarket blocks go for, so...
Having it shipped directly to my engine builder. Sorry MachinestOne, you're a little to far away. After we inspect the block I'll make a final decision. However, I just purchased the parts to do a 396ci (3.875 stroke), so if I left it at 413ci all I would need are new pistons?? Decisions, decisions.
Having it shipped directly to my engine builder. Sorry MachinestOne, you're a little to far away. After we inspect the block I'll make a final decision. However, I just purchased the parts to do a 396ci (3.875 stroke), so if I left it at 413ci all I would need are new pistons?? Decisions, decisions.
