evo462

iTrader: (27)

got a couple of questions...my LS1 is about to the point I can drop it out of my car. I'm trying to get a list of parts I'll need to support the 5.3L in place of the LS1 in my 2002 Camaro (5.7L fbody parts that are incompatible with the 5.3L). I'm reusing the LS6 intake manifold, fuel rails, and throttle body. So far I know I'll need a new oil pan (or swap the one off the LS1 I plan to sell). Will the rest of my accessory drive system swap right over to the 5.3 (PS & water pump, alternator [relocated], etc)? How about the wiring harness/PCM from the LS1? Motor mounts all the same? I guess I'm not sure how similar the 5.3's are compared to the 5.7's.

Also, I'm planning to bolt on the truck manifolds + hot side prior to installing the 5.3 back in the car - no problems doing that, is there? I figure it'll be easier to do before hand.

pwrtrip75

iTrader: (8)

everything is the same. With the exception of a bolt hole not there for the alternator. I left it out... never had a problem,

evo462

iTrader: (27)

I read some people have drilled and tapped the head for the alternator - are you saying you did not do that?

IWGF

iTrader: (6)

One of my friends is running a 5.3 in his car and left that alternator bolt alone, no issues.

pwrtrip75

iTrader: (8)

Its not the head, it is the block. All heads have identical mounting holes.. 5.3, 5.7, 6.0...
You could drill and tap it... but it works without just fine.

Bullitt4110

iTrader: (31)

Like said above that bolt hole is about the only difference, you will need to use your current oil pan.

Pocket

iTrader: (22)

Fbody LS1 blocks use 3 bolts to hole the alt on the front of the engine and one on the side

With the truck block, one hole is present, one boss is present and one boss is completely missing up front. Side bolt is present. Not drilling/tapping the hole up front leaves a single bolt holding the alt aligned up front and one small bolt on the side. Not worth it IMHO

But, most turbo setups relocate the alt, so you very well could just skip that whole ordeal

FWIW, iron blocks only have 4 motor mount holes where alum blocks have 6. The two rear holes on alum blocks arent used on any setup Ive seen, so it's no consequence

evo462

iTrader: (27)

Ah. good point, I am relocating the alternator...need to buy one of those brackets still.

98Camarod

iTrader: (43)

I sent you a pm.