just curious if anyone has met the power limits of the stock LTx blocks? I "thought" baxter had a stock block, but I could definitely be wrong.

Fred, if this isn't advanced, move it

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Baxter was running a stock block.
Limits are said to be 1200ish i have yet to find out some more info on this though.

Steven

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thanks steven. should be plenty stong for my plans

 

George was running a 4-bolt (stock straight, not splayed) LT1 block, and in it's final incarnation, the engine made 1,125 crankHP. The block was never filled. At that point, it was a 383, custom Canfield heads, solid roller cam, Jesel shaft rockers, "unknown" Vortech blower running less than 20#, custom air/water intercooler, MoteC M48Pro with IEX 8-channel ignition, Hooker LT's. He is no longer using the block.

I think he might have his new setup done in time for the last two Edelbrock/PRO events.

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Fred
94 Formula A3: 381/TH400/N2O

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11.513@115.59 on motor; 11.162@127.67, 1.643 60' on a 125-shot. Going with a 275-shot this year

 

Baxter was NOT running splayed mains??? If he didn't need them at 1100+, why would ANYONE need them? seems like a waste, doesn't it?


BTW, did he ever sell his old 383? I thought some time ago, he was trying to.

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94 Formula M6 w/ 98+ front clip, P&P heads, CC 306, RK Sport Headers, 1.6 RR's, CSI pump, LT4 starter, 1.5 drop springs, custom SFC's, Fittipaldi 18's
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Pics of the Formula

 

He sold the complete engine about 3 months ago, less the S/C and MoTeC neither of which were ever for sale. The engine parts are being used in a buildup by another one of our other Central Jersey Camaro/Firebird Owners members, but I think that individual will use his own block.

Yes, it was a GM 4-bolt LT1 block, not a splayed conversion. It was used for almost 4 years. Maybe the General knows what he is doing....

Fred

 

I would say so! If i ever build a motor, 4 bolt non splayed is the way i'm going. Staying non splayed should save me 500, right?

 

what does "block was never filled" mean

I have heard of block filler and seen it for sale in the Summit catalogs but really have no idea what it does. I know that it has something to do with hi HP applications, and has something to do with water jackets.

could someone enlighten me

 

Baxter and I have had this discussion many times before and Yes he had a true 4 bolt block. I ran a two bolt converted to splayed caps. I filled the block to the center of the freeze plugs because we thought we broke the old block. Actually the block broke when we hit the wall in Shreveport and didnt know it. The stock LT1 block will hold around 1200. It doesnt like you missing on your tuneup though. Baxter and I have both switched to DART blocks because we are trying to keep up with the Jones.

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Was he (Baxter) using the factory standard 4-bolt main bearing caps or did he have aftermarket non-splayed 4-bolt caps?

Thanks.

[This message has been edited by Turbo6 (edited July 14, 2002).]

 

If you start off with a non-splayed 4-bolt block, then "yes". The local machine shop charges $325 + the cost of caps for converting over a 2-bolt block, regardless if you want splayed or straight outer bolts.


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1996 Impala SS - LT4 396, T56
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Damn... you hit the wall and didnt know it?

Just kiddn.

BTW, those used Hooker long tubes you sold me a few months ago have worked out great.



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If I'm playin, I'm sprayin

93 Z28 A3 - w/ Jet Hot coated Hooker LT's and true 3" duals
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So what is the limits of a Factory 2 bolt main?? I can't decide wether to do the splayed conversion or not? Big money differene about $600 bucks labor and all. Could a 2 bolt block live at 6500 and 650 hp?
Matt Mc

 

Anybody