ls3 install info needed for a 65 chevelle
 

I just bought 65 chevelle & I'm putting in an ls3 with a 4l65e transmission in it. I'm trying to find out what works best for this install? Headers, engine & trans mounts, engine harness & fuel tank setup?*

65 here w/ LS1 and T56...where you at in MI?
Don't think my method was the "best" but it's coming together. Glad to share info.

Link in signature.

I live in Macomb twp. What engine mounts & headers did you use?

67 here. Wouldn't change a thing. Link is in my sig.

Lapeer here...
I built my own mounts and used Hedman Muscle Rod mid-length headers. I also used a f-body pan but notched my crossmember for clearance.

I have a 64 Chevelle and used street and performance mounts, Mast motorsports pan and notched the front crossmember. For a harness I went with Speartech and then used a Ricks tank. Good to see some more early Chevelles here.:thumbsup:

Hi JB,

Do you have any pictures on the notch and reasoning behind it? Im going to be assisting a member with a swap and want to get more info on different set ups.

I'd be interested in how JB did his too. I can say that the earlier A-bodies (64-67) are a bit tighter around the front crossmember. The later frames had more of a flat area on the back and top side for pan clearance, the early ones are more of a "v" if that makes sense. I went with the F car pan, well for one I had one, and second it's shallow on the pickup side for ground clearance, and has pretty decent inner tie rod clearance. The biggest reason I notched mine was to get some clearance between the back of the passenger side cylinder head and the firewall. Some guys notch the oil pan instead for the same result.
Here's a couple pics of my notch:
http://i1207.photobucket.com/albums/...g/IMG_1418.jpg
http://i1207.photobucket.com/albums/...g/IMG_1421.jpg

Nice job on notching that frame.

Hi Vince and Aaron, I will post up some pics for you on this. I had to notch the frame for oil pan clearance with the Mast pan. You will also need to check tie rod to oil pan clearance. I Left just enough room from cylinder to firewall for my coil packs. If your not putting the coil packs on the back of the head and making your own mounts you probably can move the motor back far enough to clear the crossmember. You will also need to modify the firewall to have access to the bellhousing bolts. I have a T56 and ended up cutting the complete trans tunnel out and made a raised one front to back . This was so I could have a low stance, driveshaft clearance with the T56. Hope this makes sense.