Oh its not mine. it belongs to anothe forum memebr, but i cant remember who... maybe someone else will chime in with the answer 
LS1 swap
Thread Starter
Instructor
Joined: Nov 2003
Posts: 129
Likes: 0
From: Ringgold GA
LS1 swap
I was just curious to see if anyone here has installed the LS1/LS6 into the C4.
If so what all was involved and is it worth the effort?
A guy from the local dyno shop was toying with the idea and it sounds interesting, what do you guys think?
If so what all was involved and is it worth the effort?
A guy from the local dyno shop was toying with the idea and it sounds interesting, what do you guys think?
Le Mans Master
Joined: May 2004
Posts: 5,385
Likes: 534
Hmmm, well it can be done and it sure would be a surprise to anyone when you open the hood.......but that's probablly where the pros stop. Takes quite a bit of enginuity and fabrication, along with a buttload of patience to set it just right in the C4 framerails. Not saying this from experience but I've heard a couple of stories. Ah well, they wouldn't sell LS1s in crates if they didn't expect people to do an engine swap. Your friend would probably be better off taking a crate 350 and building it up with some go-fast goodies from GM. Then again, that's just me, a 350 V8 is a 350 V8 no matter the designation code. 
Thread Starter
Instructor
Joined: Nov 2003
Posts: 129
Likes: 0
From: Ringgold GA
IBEAM700
How difficult was the swap?
What were some of the more difficult aspects of the project?
How much fabrication was involved?
Are you completely satisified with the end results?
What about the performance of the car now?
I thought it might not be a involved as it might first seem when you think about the available motor mounts and wireing harnesses available now for swaps into older cars and even setups for 3rd gen F-bodys.
How difficult was the swap?
What were some of the more difficult aspects of the project?
How much fabrication was involved?
Are you completely satisified with the end results?
What about the performance of the car now?
I thought it might not be a involved as it might first seem when you think about the available motor mounts and wireing harnesses available now for swaps into older cars and even setups for 3rd gen F-bodys.
Race Director
Joined: May 2000
Posts: 17,101
Likes: 4
From: No more yankee my wankee, the Donger is tired!
Never really paid much attention to the swap.
Fuel inlet, is on passenger side for C4... driver side C5.
Oil fill has been swapped to accomadate fuel rail change.
Alternator is in same location as it is in the C5
Throttle Linkage has been moved to passengr side... F-body TB?
Apparently Street & Performance makes motor mounts for the LS1 in a C4, wiring harnesses have also gotten cheaper.
Fuel inlet, is on passenger side for C4... driver side C5.
Oil fill has been swapped to accomadate fuel rail change.
Alternator is in same location as it is in the C5
Throttle Linkage has been moved to passengr side... F-body TB?
Apparently Street & Performance makes motor mounts for the LS1 in a C4, wiring harnesses have also gotten cheaper.
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Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Originally Posted by xeugep
IMHO, I'd rather go with an EFI 454 cubic inch high performance SBC crate engine. Looks like they would have more potential than the LS1/6, but just with lower revs.
Safety Car
Joined: Dec 2004
Posts: 4,088
Likes: 0
From: Poop land
Originally Posted by cuisinartvette
As far as torque #'s go (stock for stock) you have a valid point. If you come across a chance to drive a built (even mildly) LS1, you'll forget all about big blocks...Those motors absolutely rip!
Heel & Toe
Joined: Feb 2005
Posts: 22
Likes: 0
I used C5 motor mounts for this swap. I was the first to put one in a C4 and did not have the luxury of ready made motor mount adaptors and such. It was challenging and fun doing this swap, even more fun to drive. As for putting a big block in instead, I guess if you want to pull the IRS and put a 9 inch with a spool and drag race that is one way to go, but as for me I would rather retain a balanced car that handles well and not put all that weight out on the front end of the car.
Regards
TracerX
Regards
TracerX
