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Thread: Ls1 VS Lt4
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11-09-2019, 11:23 AM #1
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- May 2010
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- bc
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- 8
- 97
Ls1 VS Lt4
MM I have a chance to pick up an Lt4 engine out of 96 Vett , they say they will out Rev out pull and out preform the early ls1 engines and then a toss up for the 2001, 2002 ls1 engines because they got a few tricks from the ls2. your thoughts.
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11-09-2019, 11:29 AM #2
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- May 2010
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- bc
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- 97
Im looking to buy as I posted but MMMM could buy a 93-97 fire_ cam and dump an lt4 into it MMMM lt4 11 to one , and red line of 6500! MMM
Last edited by bikelite; 11-09-2019 at 11:35 AM.
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11-09-2019, 11:49 AM #3
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- May 2010
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- bc
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- 97
What was the real HP of Lt4, I have read something very intro about the lt4 that it responded so Quick and MAXXed it full power that the ls1 was looking DOA! your thoughts.
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11-12-2019, 07:42 AM #4
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- Feb 2009
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- Florida Man Status Acheivement
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- 11,785
Navy Blue Metallic- 98 T/A, 00 FBVert, 78T/A
I would never consider a LT1 or 4 over a LSx engine unless it's the current generation of LT series.
With just a cam I could out perform the LT1/4 of that generation on a LS1. Even the Gen III and IV 5.3's outperform them.
What are your goals? It would be easier to make a recommendation based on that.
Now to be fair there is a LT1 f body that has set the stick shift record as being the fastest manual car. But there is a lot more to getting that goal then just an engine.
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01-04-2020, 04:54 AM #5
The Ls1 or any LS engine is much better choice than the old lt4 .. sure it’s a decent engine that makes okay power but has no where near the aftermarket support the ls engines have .. I won’t dog the old LT engines because they were my humble beginnings however, A 4.8 with some longtubes would make the same power as a lt4 . and you could find them in a junk yard lol
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01-04-2020, 10:56 AM #6
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- Sep 2010
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- Bel Air, Maryland
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- 1,719
Silver- '02 Trans Am WS-6, 6M
The Gen II LT4s were advertised at 330 hp, so I would say less than 300 rwhp, on a fresh setup.
The only reason to go with a LT4, is that the car its going into is already a Gen II LT1, and that the cost of it would he less than a conversion to a Gen III/Gen IV.
A well built TPI engine, with an improved intake and ignition coil system will run all day with a similar setup Gen II.
A Gen III/IV truck block is going to be way cheaper to get, and upgrade to killer power levels.SLP Air Lid/Smooth Bellows
L76 6.0L block, PRC Ported 243 heads, Texas Speed 224R cam.
Kooks Emissions LT Headers/Catted Y pipe
NGK TR55 plugs
Magnaflow Cat-back
Spohn Front Upper Tubular Control Arms
UMI Front Lower Tubular Control Arms
UMI Front Sway Bar
UMI Rear Lower Control Arms/ Adjustable Panhard Rod
UMI Welded-on Two Piece Subframe Connectors
Factory C5 Z06 17x9.5 wheels w/ 285-40-17 Continental Extreme Contact Sports all the way around.
Dyno Dynamics dynoed @:
415 rwhp
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01-04-2020, 11:00 AM #7
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01-14-2020, 04:29 AM #82000 Trans Am WS.6 M6
SLP lid & bellow w/ K&N, GMMG catback w/ Corsa Clones, UMI SFC, UMI Adj. Panhard, UMI Adj. TQ arm w/ relocation kit, QTP Longtube headers ORY, LS6 intake, EGR/A.I.R delete.
Eibach prokit, Bilstein HDs, Nitto NT555s, skip shift elim, whiteface overlays, 20% tint, matte black decal/overlays
YouTube.com/DarrenWS6
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04-11-2020, 08:17 AM #9
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- May 2006
- Location
- Abilene, Texas
- Posts
- 9
Red- 2-GMMG 2002 Camaro LE/PE
My 97 Camaros SS, Joanie is the last of the original LT-4 Camaros. She has the “balanced and blueprinted” engine from the factory. She has 350 hp and not 330 hp of the LT-1 Camaro SS.
Comparison between her and my 02 Camaro SS with the 345 hp LS-6 engine? It would be a very interesting race! I can tell you that the LT-4 pulled a lot harder off the get-go and through the gears! The end results? I couldn’t answer.
“Jenny” 2002 GMMG Camaro SS LE PE Phase III 600 hp 427
“Joanie” 1997 Camaro SS LT-4 #100
“Julie” 2002 GMMG Camaro SS LE PE Phase II 500 hp
“Jackie” 2002 Camaro SS (‘Hot Rod Pro-Tour wanna be’)
“Bubba” 1972 Chevy Cheyenne Super SWB show truck
“The Toy” 1968 Chevy SWB 50th Anniversary (1 of 120)
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