LS1 intake on L98

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Nov 12, 2004 | 07:18 PM

autorecycler

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LT1 intake on L98

Gentlemen, here is what I have. The 82 has a cooked motor and a first year 4 speed auto. Plan was to drop in the L98. well yesterday this guy comes in with a tired LS1 and 4L80e??. Plan now is to freshen the new auto and take the induction, ignition, and computer from the cop car and add it to the L98 long block, bolt on some side pipes and drop it all in the 82. I am looking for suspected pitfalls!!!!

oops, I wish I had a police LS1, what I have is a 94 LT1 intake/injection setup with computer.

Last edited by autorecycler; Nov 12, 2004 at 10:59 PM.

Nov 12, 2004 | 08:52 PM

Vetterodder

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From: Fountain Hills AZ

Won't work. The LS1 is a waaay different engine than the L98 and it's intake will not fit any easier than would a Ford or Mopar intake.

Nov 12, 2004 | 10:50 PM

SteveG75

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From: FL

Quote:

Originally Posted by Vetterodder

Won't work. The LS1 is a waaay different engine than the L98 and it's intake will not fit any easier than would a Ford or Mopar intake.

I think the cam bearings interchange but it may not even be that much.

Nov 12, 2004 | 10:56 PM

autorecycler

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crap, typo or wishful thinking, the new intake and computer are the LT1 not the LS1

Nov 13, 2004 | 01:19 AM

comp

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From: eville in

big difference

Nov 13, 2004 | 08:28 AM

SteveG75

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From: FL

Still won't work.

LT1 is a reverse flow motor. Coolant passages are different. Plus, you have the Optispark on the LT1 vice a regular distributor so there are no provisions to run a regular distributor (no hole). Not even sure if the LT1 computer will work with a distributor.

Sorry dude. You are better off selling the LT1 and using the funds to get some better parts for the L98.

Nov 13, 2004 | 01:07 PM

autorecycler

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crap again!!!
maybe it is time to bebuild the LT1 since I have the motor/trans/computer....

Nov 13, 2004 | 04:32 PM

SteveG75

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From: FL

I just saw a book at Barnes and Noble on rebuilding the LT1/LT4 family. Good luck. Should be a nice little project.

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Nov 13, 2004 | 11:12 PM

autorecycler

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isn't the basic block the same on the L98 and the LT1?
The intake, timing cover and waterpump all need to be swapped

Nov 14, 2004 | 02:32 PM

#10

75 Stingray!

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From: Barrie

Quote:

Originally Posted by autorecycler

isn't the basic block the same on the L98 and the LT1?
The intake, timing cover and waterpump all need to be swapped

Nop block is different too

Nov 14, 2004 | 07:44 PM

#11

autorecycler

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what is different on the basic block?

Nov 17, 2004 | 12:25 AM

#12

Firevette

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From: Conroe TEXAS!

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I think the rotating assy. is basically the same.

Nov 17, 2004 | 11:31 AM

#13

belair55

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From: Central IL

This guy converts LT1 and LT4 intake for use on early blocks. He drills a distributor hole and re-routes some coolant passages. Here's the link www.lt1intake.com

Nov 17, 2004 | 02:17 PM

#14

75 Stingray!

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From: Barrie

Quote:

Originally Posted by autorecycler

what is different on the basic block?

The coolant is directed from the pump into the block then 90 degrees towards the head, early heads do not have a hole here to accept coolant flow thus rendering the cooling system useless.
See the big holes along the top of the deck between the boars
The old sbc has 3 and the LT1 has 5 the ones on the front go directly to the pump.
Old SBC

LT1

Nov 20, 2004 | 12:56 AM

#15

Who Me?

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From: Planet Earth

Will the 4L80e trans fit in the tunnel? That trans is huge.

Nov 20, 2004 | 01:22 AM

#16

75 Stingray!

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From: Barrie

Quote:

Originally Posted by Who Me?

Will the 4L80e trans fit in the tunnel? That trans is huge.

It will fit in the C3 http://www.montygwilliams.com/

Some modifications have to be done to make it fit in a C4 but it's been done. http://www.twinturbovette.net/Updates.html

No idea about the C1 or C2 but I imagine the C2 isn’t much different then the C3

Nov 21, 2004 | 11:35 PM

#17

Russ Bellinis

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Quote:

Originally Posted by belair55

This guy converts LT1 and LT4 intake for use on early blocks. He drills a distributor hole and re-routes some coolant passages. Here's the link www.lt1intake.com

Be careful. One of the guys from the So Cal f-body club bought injectors from him. They were for the wrong engine, they were used, not reconditioned as described. The guy spent as much for used injectors as he would for new ones as well as fighting a months long battle to get the guy to do the right thing. This doesn't even take into account the time spent installing injectors, finding out they don't work, taking them out and testing them to find out that they don't work and then arguing with the guy who tried to say they were good when he sent them out and this guy oin So Cal must have screwed them up. I think the same guy also bought one of his Lt1 manifolds for use on an L98. The theory is sound, but since he drilled out the openning for the distributor by hand instead of with a milling machine, it didn't line up. It is not a bad mod, but you need someone who is a machinist not a "shade tree" to do the work for you.

Last edited by Russ Bellinis; Nov 21, 2004 at 11:38 PM.

Nov 22, 2004 | 06:57 AM

#18

PatsLs1vette

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From: absecon nj

My brother modded a lt-4 himself to fit on his 406 and it works fine,i think your better off rebuilding the lt-1 and using the whole thing.

Nov 22, 2004 | 11:00 AM

#19

ZD75blue

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From: NC,USA

I've thought about doing a crank drive distribueter on an ls1/ls6... and a carb.

Sure, might be a waste of all that technology... but sure would let us no-nuthins about fuel injection have some fun!

Nov 25, 2004 | 03:42 PM

#20

autorecycler

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My plan was to transfer everything onto the short block, intake, water pump, front distributor etc... but those coolant holes in the block look to be a problem....

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