#3635239 - 04/08/09 10:39 PM
Is the LT1 going to be the next hot budget motor?
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progressi
Post Master Sr
Registered: 06/01/01
Posts: 9134
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Stock bottom end LT1s making as much as an LS7? 
According to inside sources at Trick Flow Specialties they are in the final stages of production and testing of what they call the best-flowing cast cylinder heads available for naturally aspirated LT1 engines. The Trick Flow GenX™ Street/Strip Cylinder Heads. Out-of-the-box, these heads are easily capable of producing well in excess of 500 naturally aspirated horsepower.
Thats with a stock 10.25:1 compression ratio! These are going to be great so check upcoming issues of GMHTP for much more info as it becomes available.
http://blogs.gmhightechperformance.com/6...eads/index.html
I just remember someone here had an LT1 Fbody,and another built an LT1 car. I noticed a couple articles about the new Dart and Edelbrock heads. The Edelbrocks made 400 and the Darts 450. Now the Trickflow's claiming 500 on stock cubes and compression!The Edelbrock setup was believed to be tame enough to pass the Cali buttsniff test.
And just cuz,new 102mm throttle body FAST LSXR intake manifold,and 2500HP capable,siamesed bore (no overheating for street cars?) LS series race block. They say this thing can easily make 500 cubes! (that's over 8 litres) 
http://www.gmhightechperformance.com/tec...aft_tunnel.html
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#3635339 - 04/08/09 11:22 PM
Re: Is the LT1 going to be the next hot budget motor?
[Re: UglyValiant]
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00Formula
00Formula
Unregistered
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The heads may flow enough to support 500hp, but as already said the intake system will be a big restriction to reaching that hp level.
The opti-spark can be converted to LS1 coils, but it's a drawback of that engine's design.
I would think truck LS1 short block's would be almost as economical with a head swap. I would think the LS1's engine management would be easier to use on retro fits.
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#3635532 - 04/09/09 12:48 AM
Re: Is the LT1 going to be the next hot budget motor?
[Re: vwkaferman]
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90TGP
Post Master
Registered: 10/07/04
Posts: 2807
Loc: Ohio
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There are tons of LT1's in the 10's and faster running the stock intake. And there's always the option of running a single-plane intake with an elbow.
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#3636341 - 04/09/09 11:55 AM
Re: Is the LT1 going to be the next hot budget motor?
[Re: UglyValiant]
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progressi
Post Master Sr
Registered: 06/01/01
Posts: 9134
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Ive had that argument with a guy before. He actually circle tracked a car,so I assume he was an expert. A friend and I got him hooked on Mitsubishis of all things (LOL) and he swore they were so much cheaper than building a small/big block. I told him I thought you could do a BBC for cheaper,but he told me those things come with so much you have to throw away and start over with that it would be better to go with an SBC first,then stroke,etc. I said I still thought it would be cheaper then to go with an SBC (I still had my Evo at the time,haha) and he wouldnt relent.
So how much is an LT1 Fcar these days?
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#3639450 - 04/10/09 02:26 PM
Re: Is the LT1 going to be the next hot budget motor?
[Re: SD91RS]
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00Formula
00Formula
Unregistered
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$3600 for this 1999 LS1 Z28 with 121k miles.
Link
$4500 1999 Z28 automatic
Link
$3900 1995 LT1
Link
Those LS1 prices are depressing since I have a Firebird Formula, and the most they're going for now is $12-14k.
Edited by 00Formula (04/10/09 02:34 PM)
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#3640395 - 04/10/09 10:09 PM
Re: Is the LT1 going to be the next hot budget motor?
[Re: Benelliwang]
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00Formula
00Formula
Unregistered
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That guy is obviously the exception to a FI build like that.
He clearly has the know how and skill to put that type system together.
Reminds me of when QTP built a turbo LS1 Formula that used a completely interanally stock LS1,
yet they were able to get to 700-800rwhp with methenol injection. It was true, but the time they took tuning was unreal.
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#3640568 - 04/10/09 11:33 PM
Re: Is the LT1 going to be the next hot budget motor?
[Re: ]
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Benelliwang
Post Master Sr
Registered: 04/10/02
Posts: 5632
Loc: Vegas
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The key thing I was pointing out on that link was the fact the guy used a stock block, stock crank and un-ported heads. Meaning you don't have to spend the money to buy expensive block, crank, or other stuff to make it handle large amount of power.
My car was a budget build. It used stock block, stock crank, cheap rods ($200), stock cam, used ported heads ($550) and Mahl pistons ($350). It has $150 buick turbos, I dyno'ed it once on a mustang dyno with a lowly 588rwhp and not making as much boost that day. We found a exhaust leak later and now it is side by side with a 700+ rwhp car turbo ellis on the freeway. I am buying two 60-1 to replace my two stock buick turbos.
My friend with the red camaro (10.01 1/4 mile) also did a budget build, it has stock 6.0 iron block, stock crank, stock unported heads, stock cam, stock exhaust manifold, ls1 intake and used forged pistons ($300 I think). That motor was built 3 years ago with hundreds of passes at the track and thens of thousands miles on the street.
LT1 is a great budget build but I feel the LS1, especially the iron 6.0 is a better choice. The stock block and crank is proven to handle over 1000hp and has 6 bolt mains, and the stock unported heads flow fine at that level. You don't have to deal with the optispark issues (fails often), or older chips that you have to burn and swap. You can replace optispark with something that uses LS1 coils but that costs near $1k. You can also swap LS1 PCM to LT1 now but you need to buy wiring harness and the PCM. Not too cost effective in my opinion.
_________________________
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2018 Tesla Model 3 Performance Stealth
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#3642863 - 04/12/09 11:36 AM
Re: Is the LT1 going to be the next hot budget motor?
[Re: Benelliwang]
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progressi
Post Master Sr
Registered: 06/01/01
Posts: 9134
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Wow,LS1s with high miles are DSM budget now. 
Thats insanity.
When the LS1s came out the LT1 guys laughed at the aluminum blocks,has there been any validation to that?
How much weight does the iron 6 litre add?
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#3643439 - 04/12/09 05:37 PM
Re: Is the LT1 going to be the next hot budget motor?
[Re: progressi]
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00Formula
00Formula
Unregistered
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When the LS1s came out the LT1 guys laughed at the aluminum blocks,has there been any validation to that?
Reliability due to the aluminum block hasn't been an issue. There are issues with big hp builds like heads not sealing and lifting, which is why the LSX block have the option for more head bolts. I believe Lingenfelter has cars over 1000whp on aluminum blocks, and he's known for reliability.
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#3645209 - 04/13/09 12:20 PM
Re: Is the LT1 going to be the next hot budget motor?
[Re: ]
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NHRATA01
Post Master
Registered: 10/05/01
Posts: 2030
Loc: New York
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I don't know if I see that happening. Besides the design shortfalls of the LT1, the main problem is the aftermarket support is a fraction of the LSx's, and of course an even smaller fraction of the SBC's.
Thing with an LT1, is it has just enough nuances to make it different from an SBC. But to make real big power, alot of people do away with them (ie carb'd or EFI manifold and coil packs, conventional cooling) and then is it really an LT1 anymore? That was kind of always the stumbling point on LS1tech when people tried to set up LT1-only racing classes.
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2001 NHRA Trans Am M6
2012 Buick Regal GS
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#3648537 - 04/14/09 12:42 PM
Re: Is the LT1 going to be the next hot budget motor?
[Re: SD91RS]
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NHRATA01
Post Master
Registered: 10/05/01
Posts: 2030
Loc: New York
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To be honest I could be very content to pick up a '96 or '97 LT1 T/A, for the $5-$6k range in good shape, throw just a couple of bolt-ons on it and daily drive it.
But for some strange reason if I were to do that I have a real urge to pick up an '88-'90 350 TPI car for similar money. I still have a real soft spot for turd gens, I still miss my old '89 even though it was a very crappy V6.
_________________________
2001 NHRA Trans Am M6
2012 Buick Regal GS
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#3650913 - 04/14/09 11:38 PM
Re: Is the LT1 going to be the next hot budget motor?
[Re: NHRATA01]
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progressi
Post Master Sr
Registered: 06/01/01
Posts: 9134
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Ive got a Chevy buddy and we always talk v8 stuff. I told him about this article I posted here,he immediately got stoked for LT1 stuff and was looking for an IROC. LOL
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#3660744 - 04/17/09 10:05 PM
Re: Is the LT1 going to be the next hot budget motor?
[Re: progressi]
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MadKilla
Post Master Jr
Registered: 10/12/01
Posts: 1527
Loc: South FL
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Stock bottom end LT1s making as much as an LS7? According to inside sources at Trick Flow Specialties they are in the final stages of production and testing of what they call the best-flowing cast cylinder heads available for naturally aspirated LT1 engines. And just cuz,new 102mm throttle body FAST LSXR intake manifold http://www.gmhightechperformance.com/tec...aft_tunnel.html
Seeing how much power can be squeezed out of their LS1 heads, I believe it. I hit 500 to the tires with my LS1 trick flows before the bearings went bye bye. I just couldn't see building an LT1 again when the LS1 to me is just a superior package. I am scrapping it when I put the rebuilt LS1 in the 94Z.
BTW, I am waiting for my 102MM Fast intake and TB, doesn't look like I will have the TB before the car is done next week though. Should fly by 600 to the wheels with it installed and ported.
_________________________
2002 SS 427 LS7 600+ to the tire
1994 Z28 Turbo Ellis, 50% done
2016 ATS
2008 Buick Enclave CXL Buttery smoove mommy wagin
2012 CTS Coupe-sold
2014 FX37- traded
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#3661098 - 04/18/09 01:43 AM
Re: Is the LT1 going to be the next hot budget motor?
[Re: MadKilla]
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progressi
Post Master Sr
Registered: 06/01/01
Posts: 9134
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Is that setup too big for my car? Its making 475 to the wheels now on an LS6 manifold. (MTI 6.6 all-bore)
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#9235983 - 01/21/18 09:18 PM
Re: Is the LT1 going to be the next hot budget motor?
[Re: ]
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Andada
Andada
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