Team Chevelle banner
1 - 20 of 96 Posts

thunderstruck507

· Registered
Joined
·
4,423 Posts
Discussion starter · #1 ·
I have a lead on a 98 LS1 supposedly under 50k on the clock, with 4l60e tranny

No computer or harness.

What all do I need to make this work?

I'm thinking:

custom computer/harness $6-700?
headers
oil pan
electric fuel pump
ls6 intake
cam
basic parts for a teardown and reassemle to make sure it looks good inside?

any help would be appreciated
 
fuel lines (return and pressure,there are different setups for this)
speedo to wrok with tranny VSS
stock F-body oil pan can be reused
will need aftermarket swap headers or build off the LS1 exhaust manifolds..
 
A stock pan will not clear it has to be modified or you can use a LH8 pan from BRp Hotrods which is way cheaper. Also GMPP sells a harness and computer for swaps, although I don't know how much $ it is. Good Luck with the swap.
 
The stock pan will in fact clear. I recommend you check out LS1tech in the conversions and hybrids section do a search for chevelle and a-body swaps. I highly recommend you check out this particular thread: http://www.ls1tech.com/forums/showthread.php?t=510709.
BCzee and Stealth71 have posted alot of info on this forum and LS1tech. Hooker, BRP and Edelbrock all have packages to put a LS1 in the Chevelle if you don't want to do your own fab work. Speartech seems to be the more favored company to get a harness from.
 
Discussion starter · #11 ·
ok, thanks guys

what kind of fab work? i was under the impression relocating the A/C compressor and motor mounts were about all that was needed as far as "fit"
 
For a brain, I'd suggest the XFI from fuel air spark tech. They do make a wireing harness for these as well. Lost of tunability.:cool: Take a look. They also make some goodies for the ls series engines:beers:

Good luck and hope to see pics during the swap.

I'd like to do the same with my 69. But going to run a Holley MPI kit with the XFI computer.
 
Discussion starter · #13 ·
well I just got home with it, its complete minus computer/harness and coil packs it seems

all the belt drive system is there, starter as well

I believe my dad has a set of coil packs for a 5.3 vortec truck, are these the same or compatible?
 
Discussion starter · #15 ·
In the May 08 issue of car craft is a how-to article about putting a gen III into a 64-72 a-body. You may find some of their tips useful. They also have a list of sources for parts you may want/need to purchase for the swap.

if you could let me check your list and compare it to mine I'd appreciate it

thunderstruck507@hotmail.com

thanks!
 
stock pan "MAY" clear with out modding it. most guys either mod the crossmember, or the pan. look to the aftermarket. autokraft makes an awesome pan, but its expensive. it does offer more capacity and the use of the stock filter. all other aftermarket pans that i have found use a remote filter. although some may like that, i dont.

Tim
 
stock pan "MAY" clear with out modding it. most guys either mod the crossmember, or the pan. look to the aftermarket. autokraft makes an awesome pan, but its expensive. it does offer more capacity and the use of the stock filter. all other aftermarket pans that i have found use a remote filter. although some may like that, i dont.

Tim

stock LS1 oil pan fits just fine, you guys need to do your homework

Image
 
I used a BRP style mount adapter and redrilled the holes for the frame mounts moving them back. I ran into tie rod/oil pan clearance issues, which are documented in my swap thread so I had to make a 1/4" spacer under each frame mount.
 
1 - 20 of 96 Posts