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.

LSX IROC on hold

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Old Nov 7, 2009 | 06:17 AM
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LSX IROC on hold

So far all I have is the car whom i have had since 1991, compstar rods, LSX block, wire harness, ecm, vortech super charger s-trim too small. I hope to be updating this thread soon. For now i had too install a voodoo 60103 and start slapping my 355 back together. Boy oh boy, such bad times i tell ya bad times
Attached Thumbnails LSX IROC on hold-pic2-20copy.jpg   LSX IROC on hold-dscf0793-20copy.jpg   LSX IROC on hold-dscf0791.jpg  
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Old Nov 7, 2009 | 06:22 AM
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Re: LSX IROC on hold

Couple more pics!
Attached Thumbnails LSX IROC on hold-dscf0794-copy.jpg   LSX IROC on hold-pic1.jpg  
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Old Nov 7, 2009 | 10:53 AM
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From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: LSX IROC on hold

Yea, to gte my big block together faster, due to lack of funds, iam going to have to use oval port heads and a damn flat tappet cam shaft, sucks so badly since i am going ot be stepping back from 600+ HP down to 550 or so. SUCKS.

I would do a cheap *** 5.3 or 6.0 for sure if i had a damn T56 for a LS1, but i have a LT1 T56, so it is not going to happen. THose things are just so cheap now.
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Old Nov 8, 2009 | 05:22 AM
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Re: LSX IROC on hold

So is there not a T56 adapter for the LS? If not could you get someone too fab one?
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Old Nov 8, 2009 | 07:24 PM
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Car: 89 Formula / 09 G8
Engine: LS1 / LS3
Transmission: M6 / M6
Axle/Gears: 3:42 / 3:27
Re: LSX IROC on hold

Originally Posted by TecHunter
So is there not a T56 adapter for the LS? If not could you get someone too fab one?
You can interchange the bellhousing (i think) but the input shaft would need to be swapped.
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Old Nov 8, 2009 | 11:19 PM
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From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
Re: LSX IROC on hold

i understand...my 6.0L build is getting cut back a bit because of financial situations...i was originally going to go with a set of trickflow 220's...now i'm back to using STOCK 317's...
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Old Nov 9, 2009 | 12:26 AM
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Car: 88' Iroc-Z
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Re: LSX IROC on hold

Originally Posted by mw66nova
i understand...my 6.0L build is getting cut back a bit because of financial situations...i was originally going to go with a set of trickflow 220's...now i'm back to using STOCK 317's...
one of my stock 317's were cracked because the yard i got the pullout engine from dropped it off the fork lift when loading it... landed on the manifold and cracked all the way down the head. so i had to buy a set of 317's just to get the engine together and possibly runable
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Old Nov 9, 2009 | 08:42 PM
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From: New Jersey
Car: '86 Z28
Engine: LSX swap in progress...
Transmission: T56
Axle/Gears: 3.48
Re: LSX IROC on hold

Is that one of the new GMPP LSX blocks!?!? It's even more beautiful than I imagined...
EDIT: It's a 376, right?

Last edited by poofy95; Nov 9, 2009 at 08:49 PM.
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Old Nov 9, 2009 | 09:00 PM
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Re: LSX IROC on hold

Originally Posted by 87CIZ
one of my stock 317's were cracked because the yard i got the pullout engine from dropped it off the fork lift when loading it... landed on the manifold and cracked all the way down the head. so i had to buy a set of 317's just to get the engine together and possibly runable
i hope you were able to get it at a discounted rate...i'd have pitched a fit...
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Old Nov 11, 2009 | 04:48 AM
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Re: LSX IROC on hold

Originally Posted by poofy95
Is that one of the new GMPP LSX blocks!?!? It's even more beautiful than I imagined...
EDIT: It's a 376, right?
Yes it is, that's the same thing I said when it arrived! I still can't decide whether to go 440cid or 454cid. But I think I'm leaning more toward 440, that way I don't have to go over a 4 inch stroke. They say for street use its not good to go over 4inches of stroke.
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Old Nov 14, 2009 | 04:29 PM
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From: New Jersey
Car: '86 Z28
Engine: LSX swap in progress...
Transmission: T56
Axle/Gears: 3.48
Re: LSX IROC on hold

Originally Posted by TecHunter
Yes it is, that's the same thing I said when it arrived! I still can't decide whether to go 440cid or 454cid. But I think I'm leaning more toward 440, that way I don't have to go over a 4 inch stroke. They say for street use its not good to go over 4inches of stroke.
Oh. That makes sense. I'm going to do an LS1 swap once I have enough money to do anything at all. Lol.
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Old Nov 14, 2009 | 07:06 PM
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Car: 89 Formula / 09 G8
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Re: LSX IROC on hold

Personally a 427 has a nice ring to it. Nothing like spinning a big block to 7K
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