LT1 Cam in a L98
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Joined: Mar 2008
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From: Georgia
Car: 87 GTA
Engine: 350 TPI
Transmission: Automatics
LT1 Cam in a L98
Has anyone used this cam in a L98, if so will there be any noticeable difference than what comes factory in the L98. This engine is in a 1989 IROC-Z.
CAMSHAFT SPECS:
INTAKE
URATION/LIFT
@0.05 191 .418
EXHAUST
URATION/LIFT
@0.05 196 .430
LOBE SEPARATION 111
INTAKE
URATION/LIFT@0.05 191 .418
EXHAUST
URATION/LIFT@0.05 196 .430
LOBE SEPARATION 111
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From: NYTHIRDGEN
Car: 1989 T/A
Engine: PROCHARGED LB9
Transmission: FB BUILT 700r4 2200 stall
Axle/Gears: 10 BOLT EATON 3:73 POSI
Re: LT1 Cam in a L98
thats not much bigger than the stock l98 cam at all. actually imo 89 l98 cam is pretty decent. If youre car is semi stock, id just throw a good set of 1.6rr's to gain a little power on youre stock cam. But if youre gun ho to do a cam swap. there's way better options out there for youre car than an lt1 cam. go to tpis.com, they recommend some good cams for l98's.
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From: Maryland
Car: 1992 Z-28
Engine: 350
Transmission: auto
Axle/Gears: 3.73
Re: LT1 Cam in a L98
Hi Folks
I know this is an old thread but I put in the LT4 Hot Cam and it moves out. I also have SLP headers, runners, larger injectors, and a new PROM. The cam is a very good choice, sounds good but you will need a new PROM.
thanks
Bill
I know this is an old thread but I put in the LT4 Hot Cam and it moves out. I also have SLP headers, runners, larger injectors, and a new PROM. The cam is a very good choice, sounds good but you will need a new PROM.
thanks
Bill
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From: St. Louis, Missouri
Car: 1989 Firebird Formula
Engine: 383 Stealth Ram
Transmission: 700R4
Axle/Gears: 3.73 9 bolt Posi
Re: LT1 Cam in a L98
The thread is about the LT1 cam... not the LT4 Hot Cam.
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From: Maryland
Car: 1992 Z-28
Engine: 350
Transmission: auto
Axle/Gears: 3.73
Re: LT1 Cam in a L98
I am glad to see you can read and nothing better to do - however if you read 8T9 BANDIT thread - he stated there isn't too much difference between the L98 and LT1, I was just making a suggestion for another CAM. Just my
. Joined: Jul 1999
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: LT1 Cam in a L98
A cam swap is one of the last things you should do to your engine, considering how bad the stock heads are, and all the parts and pieces you have to remove (and should upgrade/replace) to get to it.
What else have you done to your engine?
What else have you done to your engine?
Thread Starter
Junior Member
Joined: Mar 2008
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From: Georgia
Car: 87 GTA
Engine: 350 TPI
Transmission: Automatics
Re: LT1 Cam in a L98
Basically stock, I am taking out my 305 and putting in the 350. The engine already has the Lt1 injectors and I will be installing headers
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From: Maryland
Car: 1992 Z-28
Engine: 350
Transmission: auto
Axle/Gears: 3.73
Re: LT1 Cam in a L98
I believe what everybody is telling you is do the other things first, Headers (good bang for the buck), heads (I have ported Edelbrock heads), intake runners, etc. When I went to the cam I have most of the other things installed so it easy to make a cam decision. The other decision you have to make is this, with the engine out of the car – it easy to replace the cam. Once in the car, not so easy. But you are the only one that has to make that decision. The thing is where you want to be with the engine when it all say and done – how much power adders.
Thanks
Bill
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From: St. Louis, Missouri
Car: 1989 Firebird Formula
Engine: 383 Stealth Ram
Transmission: 700R4
Axle/Gears: 3.73 9 bolt Posi
Re: LT1 Cam in a L98
Nothing better to do? I was trying to contribute to a thread the same as you did. So following your logic, you must have nothing better to do as well.
I wasn't trying to be rude - I just misread the post. But thank you for following up with a rude reply.
I wasn't trying to be rude - I just misread the post. But thank you for following up with a rude reply.
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From: Maryland
Car: 1992 Z-28
Engine: 350
Transmission: auto
Axle/Gears: 3.73
Re: LT1 Cam in a L98
Ok Ok - let's just move on - did not mean to start a war.
thanks
bill
Joined: Jan 2005
Posts: 10,408
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: LT1 Cam in a L98
EDIT- A 94+ LT1 cam will wake up your TPI slightly all through the RPM band.
Last edited by Fast355; Oct 9, 2008 at 11:27 AM.
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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 in a L98
Just to point out: the specs listed in the original post are for the B-body LT1 cam. That's a good cam for a heavy car or a truck, but you would definitely want the F or Y-body LT1 cam in a light vehicle like the 3rd Gen.
Joined: Jan 2005
Posts: 10,408
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: LT1 Cam in a L98
That really depends on the application. Some F-cars could easily run better with the B-car/Vortec truck roller cam. Depends on the gearing and useage. I bet the smaller cam would run very well in a taller geared car.
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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 in a L98
BTW, I AM the Number 1 fan of the B-car LT1 cam :wink: .....running 12.3's all motor in a 1996 ImpalaSS, the only part of the engine opened up has been the valve covers to upgrade the springs and installed 1.6 roller rockers.
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