LS1 in 1st gen questions
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Staging Lane
Joined: Jan 2003
Posts: 70
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From: Grand Rapids,Mi
LS1 in 1st gen questions I have an 02 LS1/4L60 that is going in my 68 camaro convertible. My oil pan is at S&P being modified. If I use their motor plate adaptors, will I have any clearance problems with the alternator or power steering. I'm not using the A/C so that won't be a problem. How about with the stock heater box or wiper motor?
Also, does anyone know how big of a hole I need to drill in the firewall to get the wiring harness through it? I want to mount the computer under the dash. Is that where you guys put yours? Thanks, John
Also, does anyone know how big of a hole I need to drill in the firewall to get the wiring harness through it? I want to mount the computer under the dash. Is that where you guys put yours? Thanks, John
Staging Lane
Joined: Jan 2003
Posts: 57
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From: NJ
Re: LS1 in 1st gen questions My suggestion to you (if you are goind to use stock egzost manifold) grind down and weld the o2 sensor fitting on the driver side. In my 67 Camaro / 2001 LS1 aplication it hit the power steering box and made the engine sit slightly crocked.
Alternator clears no problem. I dont know about the heater box because my fire wall smoothted. In my car there is a whole on the firewall right behind the driver side head which I use for wires. I wiil install my PCM under the passinger fender on the firewall where heater motor used to be.
Alternator clears no problem. I dont know about the heater box because my fire wall smoothted. In my car there is a whole on the firewall right behind the driver side head which I use for wires. I wiil install my PCM under the passinger fender on the firewall where heater motor used to be.
TECH Apprentice
Joined: Jun 2002
Posts: 319
Likes: 0
From: NH
Re: LS1 in 1st gen questions I didn't use their motor mounts because I wanted to keep the ac. I was told both the ac and alternator would have to be relocated with their mounts. As for the PCM wiring, it is too short to get under the dash. I too am going to mount the PCM somewhere under the pass fender. I am using a Vintage ac unit so the blower motor isn't there anymore. If I had to guess, the size of the wires is about 1.25 - 1.5 inches. Just in case you were thinking of extending them.(Wire stretches?)
On The Tree
Joined: Apr 2002
Posts: 112
Likes: 0
From: Ottawa, ON
Re: LS1 in 1st gen questions John
Take an educated guess as to whether the wiring is long enough to go where you want it under the dash. I had to install the PCM inside on my Astro AWD as there was no place to put it under the hood. I had to extend the wiring 32 inches. That is a lot of soldering when you take 140 wires and multiply X2. The more joints you make, the more potential problems. I had a few before I learned NOT to follow GM's recommendations for the splicing of control wiring and redid the whole works.
The hole has to be big enough to get a PCM connector and 1/2 the wiring harness through .
Hope this helps.
Take an educated guess as to whether the wiring is long enough to go where you want it under the dash. I had to install the PCM inside on my Astro AWD as there was no place to put it under the hood. I had to extend the wiring 32 inches. That is a lot of soldering when you take 140 wires and multiply X2. The more joints you make, the more potential problems. I had a few before I learned NOT to follow GM's recommendations for the splicing of control wiring and redid the whole works.
The hole has to be big enough to get a PCM connector and 1/2 the wiring harness through .
Hope this helps.
Re: LS1 in 1st gen questions So...Can the main computer wire bundle be extended...say 2 to 3 feet if needed? I would use the same wire & silver soldered connections with epoxy heat-shrink. And would this apply to any of the wire lengths? Is there a limit? I know of someone that has installed an LS1 into an antique Chris*Craft wood boat & was curious...As well as for my truck. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> Thanks, Ed
Teching In
Joined: Jan 2003
Posts: 20
Likes: 0
From: Houston, Tx
Re: LS1 in 1st gen questions To 67ls1CamaroProject :
If you didn't use the S&P motor mounts, did you have to fabricate your own? I am asking b/c i too am going to use the a/c, and i am no sure if it will fit.
If you didn't use the S&P motor mounts, did you have to fabricate your own? I am asking b/c i too am going to use the a/c, and i am no sure if it will fit.
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TECH Apprentice
Joined: Jun 2002
Posts: 319
Likes: 0
From: NH
Re: LS1 in 1st gen questions Douglas14,
I used motor mounts from the year one 69 camaro. The guy who made them was Phil Brewer from BRPhotrods.com. I had to modify my th400(for t56) crossmember by hogging out nearly all of the middle section and welded a bracket on the motor side of the member. I also had to lower the mounting point by about 1.25 inches. The motor mounts are just brand new small block mounts welded to a flat piece of steel with about a .25 inch spacer between them. Nothing to look at but they function properly. One note, the ac fits but it is tight and would require lifting the motor to replace or service it.
I used motor mounts from the year one 69 camaro. The guy who made them was Phil Brewer from BRPhotrods.com. I had to modify my th400(for t56) crossmember by hogging out nearly all of the middle section and welded a bracket on the motor side of the member. I also had to lower the mounting point by about 1.25 inches. The motor mounts are just brand new small block mounts welded to a flat piece of steel with about a .25 inch spacer between them. Nothing to look at but they function properly. One note, the ac fits but it is tight and would require lifting the motor to replace or service it.
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