LS1 C4 Conversion
Thread Starter
FormerVendor
Joined: Feb 2002
Posts: 430
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From: Falkner, MS
LS1 C4 Conversion I was wondering who has done a C4 LS1 conversion. I've got a '94 Vette that I'd love to install a heads/cam LS1 into. Anybody want to swap me even for my LT1/6speed? <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Any information is appreciated!
Take Care,
Kevin
Any information is appreciated!
Take Care,
Kevin
Banned
Joined: Sep 2002
Posts: 1,298
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From: So Cal, CA
Re: LS1 C4 Conversion Im almost done with the swap in my 91 vette. It was very easy so far.
Heres my costs so far:
$1800 - Complete LS1 from ebay with all accesories
$60 - Conversion Motor mounts from Street & Performance
$150 - MAC Headers for 98-99 F-body
$350 - New TH350 Tranny
$200 - Used Continental 9.5" 3500 rpm converter
$250 - Had wiring harness converted to a 4-wire hook up, for a BEYOND easy hookup. ( A guy on ebay)
And thats about it. I plan on having 3000 total in the whole swap with tranny.
I have all the f-body accesories on the front. I took the A/C compressor out because it wouldnt clear (or you can move it up top).
And the altenator had to be moved up top which is the last thing i have to do to finish the swap.
Heres my costs so far:
$1800 - Complete LS1 from ebay with all accesories
$60 - Conversion Motor mounts from Street & Performance
$150 - MAC Headers for 98-99 F-body
$350 - New TH350 Tranny
$200 - Used Continental 9.5" 3500 rpm converter
$250 - Had wiring harness converted to a 4-wire hook up, for a BEYOND easy hookup. ( A guy on ebay)
And thats about it. I plan on having 3000 total in the whole swap with tranny.
I have all the f-body accesories on the front. I took the A/C compressor out because it wouldnt clear (or you can move it up top).
And the altenator had to be moved up top which is the last thing i have to do to finish the swap.
Re: LS1 C4 Conversion You might try paging a guy named "Trace" in the Texas section. He did an LS1 swap into his C4 about a year ago. Pretty sweet setup, probably a stroker by now.
-Tony
-Tony
Banned
Joined: Sep 2002
Posts: 1,298
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From: So Cal, CA
Re: LS1 C4 Conversion Go with the 00-01 MAC non egr headers if you buy them new. so you dont have the extra egr stuff to blockoff, but i got mine used cheap.
Yes the MAC f-body headers fit.
BTW: My vette now weighs approx 2700 lbs without me in it, and that includes no stripping of any kind (other than A/C) and a 5-pt roll bar. So it makes this car very easy to go REAL fast.
Yes the MAC f-body headers fit.
BTW: My vette now weighs approx 2700 lbs without me in it, and that includes no stripping of any kind (other than A/C) and a 5-pt roll bar. So it makes this car very easy to go REAL fast.
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Verdad Gallardo Banned
Joined: Sep 2002
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From: So Cal, CA
Re: LS1 C4 Conversion Actually i just went down and weighed it! It weighs 2700, FULL WEIGHT swwwweeeet... it outta be easy to get in the 9's in a low horspower motor. Heres what i did:
Yea it was full weight nothing removed.
The car weighed about 3100-3200 when it was stock
1) Going to th350/9" converter saved approx 70 lbs
2) I have a cowl hood scoop on it, and the thinner fiberglass was 12 lbs diff. 82 total
3) Ls1 motor swap from L98 stock motor,iron exhaust manifolds, big tpi intake, Smog pump etc (my car had a 85 TPI motor in it with iron heads, blah only ran 14.1 @ 100 mph). Approx 150 lbs saved. 232 total
4) Weld Prostars from stock wheels 80 lbs. 312 total
5) A/c & heater blower box, condensor, a/c pump gone 40 lbs 352 total
6) This is the race weight with open header exhaust at the track . minus full exhaust out the back 70 lbs. 422 total
7) No passenger seat at the track, 20 lbs. 442 total
8) Spare tire stuff delete 40 lbs 482 total
and heres my last ditch idea if it doesnt go quite 9's:
remove hood: 100-140 lbs
front bumper: 20 lbs
Rear glass/hatch: 50-60 lbs
Targa top: 25-30 lbs??
Doors: 150 lbs
The local dragstrip here has "street race" nights where they do no tech at all if the car is tagged/registered/insured, other than a helmet and seat belts. (weve had low 9 second cars with no cages, and just a lap seat belt and a helmet on them.
That would put me at a solid: 2300 lbs !!!! hahahahahah that would be ghetto but HILARIOUS. Now thats hardcore. I bet the 550 rwhp my car has on a small bottle shot would run mid 9's @ 145
Yea it was full weight nothing removed.
The car weighed about 3100-3200 when it was stock
1) Going to th350/9" converter saved approx 70 lbs
2) I have a cowl hood scoop on it, and the thinner fiberglass was 12 lbs diff. 82 total
3) Ls1 motor swap from L98 stock motor,iron exhaust manifolds, big tpi intake, Smog pump etc (my car had a 85 TPI motor in it with iron heads, blah only ran 14.1 @ 100 mph). Approx 150 lbs saved. 232 total
4) Weld Prostars from stock wheels 80 lbs. 312 total
5) A/c & heater blower box, condensor, a/c pump gone 40 lbs 352 total
6) This is the race weight with open header exhaust at the track . minus full exhaust out the back 70 lbs. 422 total
7) No passenger seat at the track, 20 lbs. 442 total
8) Spare tire stuff delete 40 lbs 482 total
and heres my last ditch idea if it doesnt go quite 9's:
remove hood: 100-140 lbs
front bumper: 20 lbs
Rear glass/hatch: 50-60 lbs
Targa top: 25-30 lbs??
Doors: 150 lbs
The local dragstrip here has "street race" nights where they do no tech at all if the car is tagged/registered/insured, other than a helmet and seat belts. (weve had low 9 second cars with no cages, and just a lap seat belt and a helmet on them.
That would put me at a solid: 2300 lbs !!!! hahahahahah that would be ghetto but HILARIOUS. Now thats hardcore. I bet the 550 rwhp my car has on a small bottle shot would run mid 9's @ 145
