I'm thinking about doing a 5.3 swap in my CJ7. I currently have a 360 and NP 435 tranny. I have done a 350 swap before, so this isn't totally new to me. But I know nothing about the LS motors. I would like to keep my 435 so here goes:
Inlet and outlet differences on radiator.
What year engine to look for.
Wiring and accessories to get
Measure with a Micrometer
Cutter with an ax
Beat it to fit
Paint it to match
My NP435 install [url]http://www.jeepforum.com/forum/f8/time-tranny-swap-upgrading-np435-1487201/[/url]
Mounts and adapters can both be found from Novak and Advanced Adapters. I recommend looking at the Novak website. They have a lot of information on this particular swap. I forgot the year, but in the mid 90's many of them went from cable to wire throttle. I think in the Vette's it was 95/96 was when they made that transition.
Is a LS1 5.7 just a Vortec 350 with the newer style injection system that came on the 5.3.
Does any of the 5.3's come with a throttle cable instead of drive by wire?
LS is a whole new series than the old SBC. no interchangeable parts AFAIK
early models, pre 2003 were cable driven not fly by wire.
years to avoid, 01-06 4.8's and 5.3 unless you plan on swapping heads, or at the very least pull a valve cover and check the head castings before buying a motor. the aluminum heads on the 01-06 4.8's and 5.3's were outsourced to a company called castech. they are known to get hairline cracks in them, my 03 5.3 did. just do a little search, you can find just what to look for on them.
1998 ZJ-- lowered a touch
2005 GMC 2500HD 496 C.I.
Fat Amy-1989 K5 blazer. Linked, lifted, 38.5's on won tons. Big Girls can play in the woods too.
I'm up to page 22. Lots of info there. Thanks for the info on the heads.
I'm guessing a 00-01 would be a good year to look for.
What all should I get from the salvage yard.?
Is the bell housing bolt patern the same as a old school 350?
You should get the complete engine along with the wire harness/PCM (computer) and I'd try and get the O2's as well if you can, even if they're bad you can use the P/N's to order replacements as there are several different ones used depending on what vehicle the harness is out of. I grabbed the fuse block when I pulled my setup even though I'm not running it as it has labels that help with knowing what wires go where.
If you get the drive-by-wire you'd need the TAC module along with the throttle pedal assembly, you don't have to worry about any of that with drive-by-cable.
The bell-housing pattern is slightly different, 1 boss is in a different location, but many people have bolted up transmissions from behind SBC without having any issues.
If you're not into messing with the wiring yourself, there are many different companies that offer new harnesses, and several that will re-work your stock harness to stand-alone with only a few wires to hook up. New harnesses can be very expensive, re-working your harness is usually only $2-300. Either way the computer will need to be reprogrammed which ranges from $75-200 depending on who you go to.
99 Wrangler Project Detroit Mongrel 5.3/4l60e/Atlas HPD60/14B coilovers etc...