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

Lt4 Hot Cam

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Old 01-20-2010, 10:53 AM
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Default Lt4 Hot Cam

hey guys. i have a 1995 lt1 firebird formula with the t56 6speed. its bone stock except for a magnaflow exhaust. i just bought an lt4 hot cam from my friend. what all do i need to buy to go along with it??? i know i need hardened push rods and propably lifters. what kind of lifters should i get and do i need new valve springs and rocker arms??? will it run ok on the stock tune or does the car need to be tuned after the cam install??
Old 01-20-2010, 10:56 AM
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You could probably get away with using the stock pushrods and lifters. You will need a decent valvespring over anything..
Old 01-20-2010, 11:02 AM
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k do i need to have the computer turned also or will it run ok on the stock tune??
Old 01-20-2010, 11:05 AM
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Originally Posted by 2fast4u1989
hey guys. i have a 1995 lt1 firebird formula with the t56 6speed. its bone stock except for a magnaflow exhaust. i just bought an lt4 hot cam from my friend. what all do i need to buy to go along with it??? i know i need hardened push rods and propably lifters. what kind of lifters should i get and do i need new valve springs and rocker arms??? will it run ok on the stock tune or does the car need to be tuned after the cam install??
As long as your stock lifters are in good shape, you can reuse them. What kind of mileage is on the car?

You are going to need valvesprings, locks, retainers, and seats. You can reuse your stock rocker arms but you're going to be giving up HP by staying with the stock 1.5 rockers. Upgrading to full roller 1.6s is a good idea.

If it were me though, I'd sell it off again and pick up something a little more worthwhile. Then again, you're on stock manifolds so you're fairly restricted in what type of cam to run.

It will run on the stock tune, but it won't run. Make sense?
Old 01-20-2010, 11:07 AM
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yea it's only got 62,000 miles on it. Like i should be able to go to the drag strip with it just fine and play without tuning it right?
Old 01-20-2010, 11:10 AM
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Originally Posted by 2fast4u1989
yea it's only got 62,000 miles on it. Like i should be able to go to the drag strip with it just fine and play without tuning it right?
In order for it to run at it's full potential, you need at least a mail-order tune. Running it on the stock tune won't chase everyone away. You'd be giving up 10-20 HP by running with the stock tune.
Old 01-20-2010, 11:16 AM
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k im gona get it tuned eventually just running low on cash lol. running on the stock tune shouldn't burn up valves or anything though right. ive heard some vidoes of the lt4 hot cam and it sounds pretty choppy
Old 01-20-2010, 11:17 AM
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Sigh. Another newb buying a cam for the sound.

IMO, if you don't have the cash to do it right, don't do it at all.
Old 01-20-2010, 11:22 AM
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I bought it for sound at the time..so **** off..lol

You won't kill the Valves running it stock tune, if anything it will run a little rich cause the O2's will sense the more air coming through. Get it tuned and idle set at 600..it'll sound nice.
Old 01-20-2010, 11:24 AM
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awsome. did you pick up some good power with the cam??? i only paid $75 for it lol
Old 01-20-2010, 11:35 AM
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I had the Kit with it too..Rockers & Springs. I built a little bad-*** LT1..Forged Rods & Pistons, Stock Crank, Balanced, 11:1 Comp. with Port-matched Heads & Intake. It put 335/335 to the wheels through the A4. I had a pretty damn good Tune on it too.
Old 01-20-2010, 11:54 AM
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If your on a budget search in the for sale sections and look for:
Headers
1.6rr's
Vavle springs
hardware
Old 01-20-2010, 03:51 PM
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Originally Posted by the_merv
I had the Kit with it too..Rockers & Springs. I built a little bad-*** LT1..Forged Rods & Pistons, Stock Crank, Balanced, 11:1 Comp. with Port-matched Heads & Intake. It put 335/335 to the wheels through the A4. I had a pretty damn good Tune on it too.
With better cam selection you can do much better than that cam only, I put down 339/345 with a Lunati cam, remarkably similar to the Hot cam but with a little more lift and a different profile, on stock shortblock/heads... but for 75 bucks and more concerned with sound than performance the Hot Cam is a good fit that performs well, sounds healthy, and does not require the same amount of supporting mods
Old 01-20-2010, 05:58 PM
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I just want to point out that with stock manifolds, you will be choking the performance of that cam as well as the sound. I would first buy a set of long tubes so that the car isn't modded *** backwards and performs like it should.
Old 01-21-2010, 12:21 PM
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well i think i have decided to go ahead and get the long tube headers first. i heard they can be a pain in the *** to install on the Lt1. My friend was gona sell me the Lt4 hot cam for $75 but after pricing out the 1.6 rr's, push rods. springs, and lifters i came to a total of $550 just in extra parts. i can buy the complete Lt4 hotcam from Summit for $650 so I may as well go that route. What do you guys think?
Old 01-21-2010, 12:27 PM
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Originally Posted by 2fast4u1989
well i think i have decided to go ahead and get the long tube headers first. i heard they can be a pain in the *** to install on the Lt1. My friend was gona sell me the Lt4 hot cam for $75 but after pricing out the 1.6 rr's, push rods. springs, and lifters i came to a total of $550 just in extra parts. i can buy the complete Lt4 hotcam from Summit for $650 so I may as well go that route. What do you guys think?
I think that is a wise choice. Long tubes are a pain to install but not something I would not get discouraged about. The first time I installed a set it took me a long while and it was a real PITA but now I could swap them in no time at all. It's a good way to learn more about the car and whatnot. Anyhow grab the headers and save up your money to do the cam swap the right way when the time comes.
Old 01-21-2010, 12:29 PM
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Definitely replace the rockers if you have the cash. 1.6 Comp Magnums are a good choice for the money I think. The stock stamped parts are more like 1.45 than 1.5 so you'd get a pretty good increase there. Also the higher ratio gets the valve off the seat faster so you get a little more bottom too I think and they also increase the cam duration slightly.
Old 01-21-2010, 12:37 PM
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what do you think of the these pacesetters?? http://www.hawksthirdgenparts.com/pa...ceheaders.aspx
Old 01-21-2010, 02:11 PM
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You can get the Coated ones for $400..look around some more bud..
Old 01-21-2010, 02:13 PM
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You can get nicer headers for that price dude. Look around like merv suggested


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