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671 Blown LT1, looks sweet!!! One question though.

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Old Feb 25, 2006 | 04:19 PM
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671 Blown LT1, looks sweet!!! One question though.

Im wanting to do this with a small single carb blower & seeing how im all ready running a carb setup the only question I have is about the bolt pattern...What did this guy have to do to mate the blower manifold to the LT1 heads..How different is the bolt pattern from the LT1 heads and the old school heads? Go hear to read all about the only 671 blown LT1 I have ever seen..


http://users.senet.com.au/~tims/WebPage.html




Old Feb 25, 2006 | 05:23 PM
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Re: 671 Blown LT1, looks sweet!!! One question though.

Mother of God change your font!

-Dustin-
Old Feb 25, 2006 | 05:37 PM
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Re: 671 Blown LT1, looks sweet!!! One question though.

Originally Posted by Bersaglieri
Mother of God change your font!

-Dustin-
THERE! IS THIS BETTER?
Old Feb 25, 2006 | 05:47 PM
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Re: 671 Blown LT1, looks sweet!!! One question though.

I dont know about you but I dont sit 8 feet from my computer monitor.

-Dustin-
Old Feb 25, 2006 | 06:24 PM
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Re: 671 Blown LT1, looks sweet!!! One question though.

Originally Posted by bipolar
THERE! IS THIS BETTER?

we all love a sense of humor....that blower setup is pretty f'in badass...
Old Feb 25, 2006 | 09:56 PM
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Re: 671 Blown LT1, looks sweet!!! One question though.

It's hard to tell in the picture, but I bet he's using old-style heads with the conventional intake manifold bolt pattern. It's not too hard to modify them to work with the LTx cooling system.
Old Feb 25, 2006 | 10:14 PM
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Re: 671 Blown LT1, looks sweet!!! One question though.

Originally Posted by engineermike
It's hard to tell in the picture, but I bet he's using old-style heads with the conventional intake manifold bolt pattern. It's not too hard to modify them to work with the LTx cooling system.
Looks like there's a plug in the front coolant crossover passage hole on the driver's side. I believe LT1/4 heads were the only ones that had those.
Old Feb 25, 2006 | 10:26 PM
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Re: 671 Blown LT1, looks sweet!!! One question though.

Right, but it also looks like the intake manifold bolt that's visible is perpendicular to the gasket surface. The LTx is pointed more upward than that.
Old Feb 26, 2006 | 03:36 AM
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Re: 671 Blown LT1, looks sweet!!! One question though.

Trust me, its all LT1, Go here and check out his site with pics and build diary.
http://users.senet.com.au/~tims/WebPage.html
Old Feb 26, 2006 | 10:14 AM
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Re: 671 Blown LT1, looks sweet!!! One question though.

Originally Posted by bipolar
Trust me, its all LT1,
There's something very screwy about his LT1. This is the engine from the T-bucket:

http://aussie-t.150m.com/motor1.html

Take a close look at the intake manifold bolt hole locations, namely the middle two.

Now, look at the middle two bolt holes in this LTX head:

http://www.flatlanderracing.com/afr-sbc210lt4.html

Here's the two styles side-by-side:

http://www.macmaster.on.ca/sbgm.htm

It may be an LT1 block, but there's something funny going on with his heads. They are NOT OEM production LTX heads because they do not have the correct intake manifold bolt pattern and angle.

Mike
Old Feb 26, 2006 | 11:05 AM
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Re: 671 Blown LT1, looks sweet!!! One question though.

http://aussie-t.150m.com/blower1.html
Old Feb 26, 2006 | 03:16 PM
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Re: 671 Blown LT1, looks sweet!!! One question though.

Yeah, I can tell you whats screwy. He had the middle four bolt holes filled and new ones drilled for the old style manifold to bolt on. Thats what you have to do to bolt a blower onto a LT1.
Old Feb 26, 2006 | 03:46 PM
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Re: 671 Blown LT1, looks sweet!!! One question though.

Originally Posted by bipolar
Yeah, I can tell you whats screwy. He had the middle four bolt holes filled and new ones drilled for the old style manifold to bolt on. Thats what you have to do to bolt a blower onto a LT1.
Actually, all 6 bolts on both heads are different locations and angles.
Old Feb 26, 2006 | 06:33 PM
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Re: 671 Blown LT1, looks sweet!!! One question though.

I think your wrong. I say Exact same angle and JUST the center holes are different. Nothing like a hack job arguing with mechanical engineer. can you show me proof?

Last edited by bipolar; Feb 26, 2006 at 06:38 PM.
Old Feb 26, 2006 | 08:42 PM
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Re: 671 Blown LT1, looks sweet!!! One question though.

Originally Posted by bipolar
I think your wrong. I say Exact same angle and JUST the center holes are different. Nothing like a hack job arguing with mechanical engineer. can you show me proof?
Dude, I have a spare set of AFR LT4 heads, a single SBC Iron Eagle head, and a Victor-EFI intake that's drilled for both patterns all in my shop. The angle of ALL holes is different between SBC and LTX. All holes, except front-most and rear-most, are in different locations also. Trust me - I just looked at them to be absolutely sure.

Mike



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