LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

LT1 cam choices

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Old Dec 29, 2009 | 05:35 PM
  #1  
ericjon262's Avatar
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From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
LT1 cam choices

I'm looking at getting an LT1 T56 parts car and putting the LT1 and T56 in my 1991 camaro RS 305 TBI. I was wondering what cam you guy's think I should run, the LT1 will be completely stock internally. I already have a cam from comp, and I talked with someone at comp and they said I can exchange it (hasn't been used) for a different cam if I pay shipping and a restocking fee, so I would like to know what you guys think the best cam for the car would be.



I will be driving the car daily, so I don't want anything to radical, and I don't plan to have any power adders it's a T56 car, and I'll be putting a lower gear in, and I don't plan to rev past 6000-6500, It'll probably be rare for it to be over 4500. I have long tube headers going in with the LT1.




Any suggestions?


Thanks-


Eric

Last edited by ericjon262; Dec 29, 2009 at 07:09 PM.
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Old Dec 29, 2009 | 06:43 PM
  #2  
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From: Bright, IN
Car: '86 Bird, 96 ImpalaSS, 98 C1500XCab
Engine: LG4, LT1, L31
Transmission: 700R4, 4L60E, 4L60E
Axle/Gears: 3.73 Tors, 4.88 spool, 3.73 Eaton
Re: LT1 cam choices

What are the specs on the Comp cam you currently have in hand?
Also give us a little more information on what you want to achieve, ie. why you think the stock LT1 cam isn't what you want.
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Old Dec 29, 2009 | 07:05 PM
  #3  
ericjon262's Avatar
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From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
Re: LT1 cam choices

Originally Posted by 86LG4Bird
What are the specs on the Comp cam you currently have in hand?
Also give us a little more information on what you want to achieve, ie. why you think the stock LT1 cam isn't what you want.

The cam I have isn't computer friendly.

I really want a fun daily driver, but I also want more than what a stock LT1 has to offer, I want to swap the cam now, mainly because if I have the engine out to put it in my car, if I don't do it now, I'll have to take the car apart to put one in, now, it gets put together once, and goes in once.

I'm thinking maybe the 466.

http://www.summitracing.com/parts/CCA-07-466-8/

Last edited by ericjon262; Dec 29, 2009 at 07:17 PM.
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Old Dec 29, 2009 | 07:46 PM
  #4  
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From: Bright, IN
Car: '86 Bird, 96 ImpalaSS, 98 C1500XCab
Engine: LG4, LT1, L31
Transmission: 700R4, 4L60E, 4L60E
Axle/Gears: 3.73 Tors, 4.88 spool, 3.73 Eaton
Re: LT1 cam choices

Originally Posted by ericjon262
The cam I have isn't computer friendly.

I really want a fun daily driver, but I also want more than what a stock LT1 has to offer, I want to swap the cam now, mainly because if I have the engine out to put it in my car, if I don't do it now, I'll have to take the car apart to put one in, now, it gets put together once, and goes in once.

I'm thinking maybe the 466.

http://www.summitracing.com/parts/CCA-07-466-8/
You'll need a very stout valvetrain to support the aggressive lobes on that cam. I'm more inclined to recommend the Comp 502 cam (218/224/112 with milder XE lobes), but you still will need some decent valvesprings.
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Old Dec 29, 2009 | 10:00 PM
  #5  
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From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
Re: LT1 cam choices

Any cam you put in you will want to upgrade the valve springs at the minimum. I would probably go with the 07-467-8 since it makes good use of the entire RPM range that the motors turn (I have my rev limiter set at 6300 on my LT1, the stock is around 6000 iirc)
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Old Dec 29, 2009 | 10:16 PM
  #6  
ericjon262's Avatar
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From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
Re: LT1 cam choices

Originally Posted by Klortho
Any cam you put in you will want to upgrade the valve springs at the minimum. I would probably go with the 07-467-8 since it makes good use of the entire RPM range that the motors turn (I have my rev limiter set at 6300 on my LT1, the stock is around 6000 iirc)
are you running the 467? what's it idle like?

I already have springs and comp "magnum" lifters, I also plan to get some new roller rockers, and just to be on the safe side, a new timing set. you guy's think I should get new pushrods too? anything I'm missing?

Thanks for the help-

Eric
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Old Dec 29, 2009 | 11:04 PM
  #7  
ericjon262's Avatar
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From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
Re: LT1 cam choices

would running the 467 require me to get new injectors?
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Old Dec 29, 2009 | 11:10 PM
  #8  
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From: Bright, IN
Car: '86 Bird, 96 ImpalaSS, 98 C1500XCab
Engine: LG4, LT1, L31
Transmission: 700R4, 4L60E, 4L60E
Axle/Gears: 3.73 Tors, 4.88 spool, 3.73 Eaton
Re: LT1 cam choices

Originally Posted by ericjon262
would running the 467 require me to get new injectors?
No, not with stock heads.
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Old Dec 30, 2009 | 12:38 AM
  #9  
ericjon262's Avatar
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15 Year Member
 
Joined: Nov 2008
Posts: 1,545
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From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
Re: LT1 cam choices

how much power will the stock injectors support?
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Old Dec 30, 2009 | 06:30 AM
  #10  
Klortho's Avatar
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Joined: May 2004
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From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
Re: LT1 cam choices

I'm not running the 476, I had a buddy here that was running the 292 in his (biggest XFI cam they make) and it sounded good

a clip

http://www.youtube.com/watch?v=4FBSSAC4WmM
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Old Dec 31, 2009 | 09:32 PM
  #11  
ericjon262's Avatar
Thread Starter
Supreme Member
15 Year Member
 
Joined: Nov 2008
Posts: 1,545
Likes: 10
From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
Re: LT1 cam choices

I think I'm going to go with the 466, I think the 467 would be a little much for the mostly stock LT1.
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