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

LT-1 vs LT1 article

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Old 06-08-2010, 02:51 AM
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That cam in the LT-1 is gigantic! I wonder what the lift and LSA were on it though......
Old 06-08-2010, 03:01 AM
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.459 / .485 116 LSA

Says right on that article page posted
Old 06-08-2010, 04:06 AM
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Originally Posted by gregrob
.459 / .485 116 LSA

Says right on that article page posted
I never said I could read Damn thats pretty epic fail though. Surprisingly aggressive stock cam.
Old 06-08-2010, 06:58 AM
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Back in the day GM always under rated the HP numbers for insurance purposes, such as the 1970 LS6, it was rated at 450 HP where in fact it made closer to 500, even the 427 made close to the 500 mark. A friend of mine had a 1970 LT1, put 4.11 gears, headders, rest was stock. With slicks he was running 12.2's. I get pissed at the fact where magazine articles will say that the LS6 ran like 14 quarter mile times, but they don't say that's on bias ply tires smoking them all the way down the track. I saw a 70 LS6 chevelle run the quarter in the mid 13's smoking the tires pretty much through the 1/8..Same as the LT1, they claim 14.1 in the quarter, maybe with Granny behind the wheel..
Old 06-08-2010, 08:38 AM
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Originally Posted by oddwraith
Wow! Very impressive nonetheless. I thought Ls1s were only around 345-350 at the crank and that lt1s were a little less. Interesting.
An LS1 in this case would likely make 400 hp.
Old 06-08-2010, 09:11 AM
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Originally Posted by moehorsepower
Back in the day GM always under rated the HP numbers for insurance purposes, such as the 1970 LS6, it was rated at 450 HP where in fact it made closer to 500, even the 427 made close to the 500 mark. A friend of mine had a 1970 LT1, put 4.11 gears, headders, rest was stock. With slicks he was running 12.2's. I get pissed at the fact where magazine articles will say that the LS6 ran like 14 quarter mile times, but they don't say that's on bias ply tires smoking them all the way down the track. I saw a 70 LS6 chevelle run the quarter in the mid 13's smoking the tires pretty much through the 1/8..Same as the LT1, they claim 14.1 in the quarter, maybe with Granny behind the wheel..
Indeed.

There was a SPEED show like two years ago where they ran all these old cars again using both the stock tires, and then modern drag radials and the differences were huge! A couple of them were in the 12s stock.

Its crazy the skinny little slippery tires they had under those beastly engines.
Old 06-08-2010, 10:51 AM
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Makes me wanna yank the acc. off my car now lol
Old 06-08-2010, 12:59 PM
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Originally Posted by Puck
Seriously - check out the size of that LT-1 cam...to think that came factory!
242/254 solid cam.
Wowza
Old 06-08-2010, 03:00 PM
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Cool. So, our LT1's kick much booty?
Old 06-08-2010, 03:17 PM
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Originally Posted by BTC
Cool. So, our LT1's kick much booty?
I think what it says is if you went back to 1970 you would have a nice motor. Nowadays to have a nice motor you need 800+rwhp

love how times change
Old 12-22-2010, 10:59 PM
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How does that old LT-1 cam or aka crane's blueprint muscle car cam compare to the GM847 cam, and which is more aggressive would you guys say?
Old 12-23-2010, 12:10 AM
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...Oh dear.
Old 12-23-2010, 12:29 AM
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very cool
Old 12-23-2010, 06:31 AM
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Originally Posted by Puck
.....Its crazy the skinny little slippery tires they had under those beastly engines.
...And the 4 wheel drum brakes!!!



A guy I worked with back in the early 70s had a '66 Dodge Charger, with the 426 Hemi. He bought it brand new. It came from the factory with 7.75-14 tires!! Admittedly, they were GoodYear Blue Streaks, but nonetheless, a car with close to 500 hp, on tires with a 4" tread width!!
Old 12-23-2010, 07:36 AM
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Originally Posted by RamAir95TA
...Oh dear.
gotta love it when someone digs up an old thread to ask off the wall questions..
Old 12-23-2010, 11:15 AM
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Originally Posted by oddwraith
Wow! Very impressive nonetheless. I thought Ls1s were only around 345-350 at the crank and that lt1s were a little less. Interesting.
Are you drunk? As said earlier a ls1 in this scenario would make at least 400hp. Lt1 is not touching that
Old 12-23-2010, 06:06 PM
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Originally Posted by RamAir95TA
...Oh dear.
Hey give em a little credit...atleast he had to have been using the search feature to find this thread



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