5.3 Iron block
Thread Starter
TECH Fanatic
Joined: Sep 2008
Posts: 1,643
Likes: 526
5.3 Iron block So I may need to replace the 2002 LS6 in my 98 Wrangler. Looks like low compression in the last cylinder on the drivers side. I hope not but I know the early LS's have very thin cylinder liners that can only honed .005?
It has already been rebuilt with forged rods and pistons. So I'm thinking either a 5.3 or 6.0 of the same vintage as a short block so I can swap over the LS6 heads/intake and such.
Anyone have any input for really good short block supplier? I would also consider a long block 5.3/6.0 including heads. Don't really need any forged stuff.
The Wrangler is my summer time mall crawler and winter time driveway snow plow.
It has already been rebuilt with forged rods and pistons. So I'm thinking either a 5.3 or 6.0 of the same vintage as a short block so I can swap over the LS6 heads/intake and such.
Anyone have any input for really good short block supplier? I would also consider a long block 5.3/6.0 including heads. Don't really need any forged stuff.
The Wrangler is my summer time mall crawler and winter time driveway snow plow.
I would def do a iron block in a 4wd, just for additional overall toughness. That being said, I would get a 5.3 block and bore it to a 5.7. You should be able to just pull your rotating assembly out of your 5.7 and stick it in the iron 5.3. Will save you a bunch of $$$.
