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Lt1 Cam, Lt4 Hot Cam how about ls1 cam?

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Old Apr 30, 2002 | 06:50 AM
  #1  
un4givin89's Avatar
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From: Lan Terminal
Lt1 Cam, Lt4 Hot Cam how about ls1 cam?

I know an Lt1 cam is supposedly a good mod and the lt4 hot cam is even better. But how about an LS1 cam? Can I stick one of those in a 350 or 305???

I've got access to one very very cheap and I am just curious. If not I'll pawn it off on ebay.
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Old Apr 30, 2002 | 07:35 AM
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From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
I never even touched an LS1 so maybe I'm wrong but I always thought nothing on the LS1 is interchangable with the older blocks
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Old Apr 30, 2002 | 10:51 AM
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From: New Britain, CT, U.S.A
Car: '87 IROC
Engine: LT1 350
Transmission: 700-R4
LS1 cams are not compatible with Gen I or II SBCs.
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Old Apr 30, 2002 | 01:50 PM
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You guys sure about that?
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Old Apr 30, 2002 | 04:57 PM
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From: Lan Terminal
btt
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Old Apr 30, 2002 | 06:23 PM
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You cannot use any LT1 or LS1 parts on our cars. Even the LT1s arent compatibale with the LS1s. This is almost like comparing Hemi's with Clevelands with Vtecs thats how different they are. LT1s and LS1s dont even run distributors, they are distributorless systems.
You want a dirtcheap cam that is good, get a summit cut cam for like 80 bucks, you think there more weak then a Lunati or a Lfltr? Nope. Your not payin for the NAME when you buy a summit cam.
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Old Apr 30, 2002 | 06:28 PM
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From: Spokane Wa
Originally posted by JucinGTA
You cannot use any LT1 or LS1 parts on our cars. Even the LT1s arent compatibale with the LS1s. .
Correct me if Im wrong but Im pretty sure the LT1 cam is compatible with are cars. As a matter a fact Im pretty sure there is a few Moderators in here who told me thats what I should get.
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Old Apr 30, 2002 | 06:29 PM
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From: Spokane Wa
Originally posted by SlowStangEater


Correct me if Im wrong but Im pretty sure the LT1 cam is compatible with are cars. As a matter a fact Im pretty sure there is a few Moderators in here who told me thats what I should get.
Nevermind Im a Jack@ss. Thats the 2nd gen LT1 platform.......
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Old Apr 30, 2002 | 06:31 PM
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LT1 cams will work in an older block, and I think an LS1 cam may even work, but I'm not sure about that.
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Old Apr 30, 2002 | 06:57 PM
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Originally posted by rezinn
LT1 cams will work in an older block, and I think an LS1 cam may even work, but I'm not sure about that.
Ya like the other guy said a older version of the LT1, which I believe came in the Vettes or somethin
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Old Apr 30, 2002 | 07:54 PM
  #11  
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From: Jacksonville ,Fl
Man, you guys are going around in circles here. Simple, LS1 stuff will not work, none of it. LT1 (meaning the 4th gen cars, not the eary 70s LT-1s) some will some won't, cams and rotating assemblies will work with some minor mods (on later gen 1 blocks) Heads and intake will work with some major mods. Blocks will not interchange.
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Old Apr 30, 2002 | 08:17 PM
  #12  
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From: Kalamazoo,Mi,USA
Car: 84 Z28
Engine: L69: cam and porting
Transmission: T5, 3.73 rear
bitchincamaro is correct here, NO LS1 stuff works with ANY small block.
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Old Apr 30, 2002 | 08:30 PM
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LS1 cam is totally different. Larger cam journals and base circles, different valve arrangement, no distributor gear, different length... it aint gonna work, not with any amount of money.

Those of you saying none of it will work, well... anything is possible. With the prices on used LS1 engines these days though, its not really a smart thing to do financially.
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Old Apr 30, 2002 | 10:20 PM
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thats why the LS1 is called the SB2!!2nd generation of the small block.NOTHING fits.
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Old Apr 30, 2002 | 10:58 PM
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LT1/LT4 cams designed for cars through 1997 WILL work in older roller-cammed SBC engines. Although the engines didn't use a conventional distributor, there was STILL a distributor. It was cam-driven at the front instead of cam gear driven at the rear. And even though the distributor location had changed, the oil pump on these engines was still driven by a gear-driven stub shaft that occupied the same position as the "old" distributor, so the drive gear was still broached into the cam billet. Aftermarket cams designed for LT1/4 engines even have a fuel pump lobe.

The LS1 engines are a lot different. LS1 cam journals are larger, and therefore will not fit in the older design SBC engines. Even if you bored the older SBC case for larger bearings, the cylinders have a different center-to-center measurement, and the camshaft lobes are in different locations, so the lifters wouldn't even be located over the lobes.

Incidentally, I think the later LT1 cases are compatible with the older design, with the only differences being some of the cooling jacket opening positions and the design of the timing cover and water pump. With minor intake modifications, a "standard" distributor could be fit to the LT1 intake and maintain the reverse-flow cooling. Or a Vortec or LT1 head design aftermarket intake could be modified and used with a carb or TPI system, while maintaining the reverse-flow cooling.

A spacer in place of the Opti-Spark distributor would position the water pump drive correctly and eliminate that difference.
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Old May 1, 2002 | 01:56 AM
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Originally posted by Vader
the cylinders have a different center-to-center measurement
The bore spacing is the same. Its the only carried over dimension from the SBC.
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Old May 1, 2002 | 09:06 AM
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From: Neenah Wi.
I am currently running a 96 LT1 cam in my L98.
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Old May 1, 2002 | 09:59 AM
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Originally posted by madmax


The bore spacing is the same. Its the only carried over dimension from the SBC.
Thanks, Max. WELL, at least my shoe is clean...

I was under the inpression that along with the different deck, jounals, lifter bores, cam location, that the holes were bored farther apart... I knew one of the center dimensions was different.

There are a few parts that will interchange, however. You know that little plastic push fastener that holds the wire loom clamp to the metal bracket? THAT will work on an older SBC with minor modifications.
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Old May 1, 2002 | 11:14 AM
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Sorry about that Vader. Dont get any ideas now...
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