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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Stock LT1 Horsepower Ratings...

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Old 11-09-2006, 12:00 PM   #1
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Default Stock LT1 Horsepower Ratings...

The FAQ says ...
Factory Power Ratings
92-96 LT1 Corvette: 300bhp, 330lb-ft
1996 LT4 Corvette: 330bhp, 340lb-ft
1992 LT5 Corvette: 375bhp, 370lb-ft
93-95 LT5 Corvette: 405bhp, 385lb-ft
93-95 LT1 F-Body: 275bhp, 325lb-ft
96-97 LT1 F-Body: 285bhp, 325lb-ft
96-97 WS6/SS: 305bhp, 335lb-ft
93-97 Firehawks: 315bhp, 340lb-ft

What about the other cars?
Like the Caddy? Caprice? or Impala?
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Old 11-09-2006, 12:11 PM   #2
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i beleive the 1994 to 1996 B-body (Impala SS, Caprice and Roadmaster) and D-body (Fleetwood) version, the LT1 engine produced 260 hp and 330 ftlb
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Old 11-09-2006, 12:38 PM   #3
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Quote:
Originally Posted by ls1charged
i beleive the 1994 to 1996 B-body (Impala SS, Caprice and Roadmaster) and D-body (Fleetwood) version, the LT1 engine produced 260 hp and 330 ftlb
wow... that little?

You figure that adding ported and polished Camaro SS heads and intake would bring it back up to a respectable 300hp?
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Old 11-09-2006, 01:34 PM   #4
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Quote:
Originally Posted by ls1charged
i beleive the 1994 to 1996 B-body (Impala SS, Caprice and Roadmaster) and D-body (Fleetwood) version, the LT1 engine produced 260 hp and 330 ftlb
yea the lt1s in those didnt perform so well... tell me why those come a dime a dozen but i cant find my dream lt1? 96 z28...

later
dkindle
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Old 11-09-2006, 02:10 PM   #5
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Quote:
Originally Posted by dkindle
yea the lt1s in those didnt perform so well... tell me why those come a dime a dozen but i cant find my dream lt1? 96 z28...

later
dkindle
why is a 96 Z28 your dream car? and there not that hard to find unless your looking for one that has less then 50k miles on it or something.
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Old 11-09-2006, 02:22 PM   #6
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thoes numbers are underrated for the F body.
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Old 11-09-2006, 02:24 PM   #7
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yeah the numbers for the fbody are really basically the same as the vette
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Old 11-09-2006, 02:59 PM   #8
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Quote:
Originally Posted by TycloneSS
wow... that little?

You figure that adding ported and polished Camaro SS heads and intake would bring it back up to a respectable 300hp?

The problem was not the heads and the intake (the iron heads actually flow better). The cam was different. It was designed for lots of lowend torque and less peak HP.
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Old 11-09-2006, 06:21 PM   #9
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The b-body LT1 was 260/330 all years and all models. As stated it was a torque monster with factory rev limit of 5500rpms that is why the low HP number the peak torque was slightly higher and earlier than the f-body just what a porky car with 2.56-3.08 gears needed.
There are a handful of bolton b-bodies in the 12s so anyone that thinks that motor is weak is a FOOL. It is the same exact shortblock as the f-body got too and got the vented opti in 94.
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Old 11-09-2006, 06:22 PM   #10
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^^^ exactly. You swap a set of ALs on a B-car LT1 with no other mods, and about the only thing you're doing is saving weight. IIRC only the later year castings of the AL heads (96-97 or something) flowed better than the Cast versions on the 94-96 B and D cars.
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Old 11-09-2006, 08:31 PM   #11
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You guys sounds very knowledgeable...
So would this setup be decent for hp and torque even though it started life as a d-body and now has f-body top end?

- 1996 Cadillac LT1
- 1997 Z28 SS heads & intake, ported, gasket matched, valve job
- Crane Cams 502
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Old 11-09-2006, 08:44 PM   #12
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Quote:
Originally Posted by TycloneSS
You guys sounds very knowledgeable...
So would this setup be decent for hp and torque even though it started life as a d-body and now has f-body top end?

- 1996 Cadillac LT1
- 1997 Z28 SS heads & intake, ported, gasket matched, valve job
- Crane Cams 502

yeah it will make good power. You know took the "power" robbing cam out of the Caddy LT1.
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Old 11-09-2006, 09:03 PM   #13
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As I said the bottomends were identical.
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Old 11-09-2006, 09:58 PM   #14
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Quote:
Originally Posted by 96capricemgr
As I said the bottomends were identical.
Oh ok, so I basicly have a 97 Z28 LT1 now...

thanks!
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Old 11-09-2006, 10:18 PM   #15
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Quote:
Originally Posted by TycloneSS
The FAQ says ...
Factory Power Ratings
92-96 LT1 Corvette: 300bhp, 330lb-ft
Thats actually 92-93. 94-96 is 340 lb-ft
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Old 11-09-2006, 10:19 PM   #16
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wow 10 whole ft lbs. way to go GM!!

Quote:
Originally Posted by sbs
Thats actually 92-93. 94-96 is 340 lb-ft
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Old 11-09-2006, 10:30 PM   #17
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Quote:
Originally Posted by 96capricemgr
As I said the bottomends were identical.
there was a switch somewhere, i dont know the exact but it was between powdered metal and the "pink" connecting rods
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Old 11-09-2006, 10:31 PM   #18
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i think we have the pink rods.

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Originally Posted by 94z28L
there was a switch somewhere, i dont know the exact but it was between powdered metal and the "pink" connecting rods
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Old 11-09-2006, 10:41 PM   #19
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As far as I knew, the b-body LT1 and the f/y-body LT1 were identical besides the heads and cam, and the Iron heads actually did flow better. Those things can be made FAST. I wasnt able to make it down MIR for Imports vs. Domestic's, but I heard a guy in a yellow and black Caprice that lives around here ran a 14.8 on 24's with a full system in the trunk. I'll tell you one thing...I love my Camaro to death, but the 94-96 Impala SS is easily one of the top 5 best looking cars EVER made. Period. If I had 12k or so laying around, I would so grab up a low mileage SS...
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Old 11-10-2006, 01:36 AM   #20
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"pink" rods were in most early to mid run 94 year LT1s. a 94-95 B-car LT1 will have vented opti. 96 will also be vented with the addition of the Crank sensor..
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