LT1 Bowtie Block
Banned
Joined: Oct 2006
Posts: 4,970
From: Goochland, Va.
You are all salty now.
We will line up, but it won't prove a whole lot of anything since our terds are a night and day difference. Besides that I still need gears/tire that I can't afford right now...
Basically if I were going to do a build like this yeah.. I really wouldn't use behive springs since this isn't some Heinz57 heads/cam build. Surely it would last 8K. Yes it's not necessary to turn that kind of rpm. Not saying it's required, but if built right then higher rpm can yield more power. There's no way you can argue that. Aside from that I'm just trying to live my dream through the OP's with this block and stating what I would do... and you are pooping on my dream. How dare you.
I'll live this dream. You go build your dreamy BB and make my dream look silly.
We will line up, but it won't prove a whole lot of anything since our terds are a night and day difference. Besides that I still need gears/tire that I can't afford right now...
Basically if I were going to do a build like this yeah.. I really wouldn't use behive springs since this isn't some Heinz57 heads/cam build. Surely it would last 8K. Yes it's not necessary to turn that kind of rpm. Not saying it's required, but if built right then higher rpm can yield more power. There's no way you can argue that. Aside from that I'm just trying to live my dream through the OP's with this block and stating what I would do... and you are pooping on my dream. How dare you.
I'll live this dream. You go build your dreamy BB and make my dream look silly.
Registered User
Joined: Dec 2003
Posts: 2,724
From: Oklahoma where trees are made of wood.
Registered User
Joined: Oct 1998
Posts: 3,144
From: Jackstandican
I need that frantic smiley you used to have in your sig...
Are you serious? The only way that block would be "windowed" is if something stupid was done. If a big money block like that is purchased then it should be complemented with a quality rotating assembly. It's not like a bowtie block is made out of glass. Do you not know there are traditional SBC's out there turning 9000rpm that live on the street and strip?
If you want a certain power level then sure that point is understood.
If you want a certain power level then sure that point is understood.
Registered User
Joined: Jul 2002
Posts: 3,768
From: Friendswood, TX, USA
Good news and bad news(for some). The block is here but the cylinder walls aren't much thicker then stock. So, looks like it's going to be a 414ci. If this was going to be an NA motor I might have gone for it anyway, but as I'm going to put a blower on it, I want as much wall thickness and gasket surface as I can get. If anyone is still interested I'll post more later.
Registered User
Joined: Jul 2002
Posts: 3,768
From: Friendswood, TX, USA
Registered User
Joined: Jul 2002
Posts: 3,768
From: Friendswood, TX, USA
Onward, I have a set of LT4 heads that I had intended to use on the 396ci. engine. We believe that these heads would have been adequate for the 396ci. but not for the 414ci. So I've ordered a set of Dart Pro 215's which will have the pockets CNC'd.
Only two big decisions left. What "trim" for the blower, i.e. how much boost do I want to run, and what Cam?
Only two big decisions left. What "trim" for the blower, i.e. how much boost do I want to run, and what Cam?
Thread Starter
Registered User
Joined: May 2004
Posts: 2,001
From: Bay Area, CA
Registered User
Joined: Feb 2006
Posts: 80
Wow just read this. Did not know there was ever a bowtie LT1 block. We race a "traditional" Pontiac powered car and our block is about $3000 for an aftermarket version (but a standard deck can be built to almost 600 ci). The head flow should be better, with the "400" bore size having less shrouding. We have seen heads pick up even if the valves were sized correctly to the bore. I think someone should get an aftermarket aluminum SBC and do a little welding and "massage" it to an LT1 lol.Put some CFE heads on it and turbo, go after some LSxs. I guess i like things the hard way having traditional Pontiac and LT1.
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Joined: Jul 2007
Posts: 321
Gotta be at least a little bit crazy to tackle a project like that, but you have to admit its impressive - or at least interesting
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West South Central Moderator
Joined: Oct 2000
Posts: 3,371
From: Kilgore TX 75662
Jeff Green is the guy to get in touch with if anybody wants an aluminum big bore LT1 block. http://www.impalassforum.com/vBullet...er.php?u=20443
It costs a bit more than $3k, but the Donovan block costs more than that to start out with. His price is comparable to the LSx block that RHS has now.
It costs a bit more than $3k, but the Donovan block costs more than that to start out with. His price is comparable to the LSx block that RHS has now.