408Maro

iTrader: (14)

ok guys so very long story short..picked up a 01 z in oct and nothing but problems and the cam had a chip on one of the lobes so pulled the heads and swapped lifters,new heads,new oil pump and tried cleaning the engine as much as possible with flushing oil everywhere i could..

so get here all done with a new eps cam and was having some valvetrain noise i assumed they were to short and must have measured wrong so i decide to move the car to the street for something and sounds like lifters took a **** and probally worse sounds just like a issue a user posted a few weeks back where his bearings went..keep in mind since all the parts its had a few hrs runtime and was really strong just sounded like pushrod issues. no bent pushrods but no oil came out of a few on the pass side and lifters were spongy after i heard the sound..

SO now since this engine is cursed ive decided to just pull it like i should have the first time and either get a cheap 6.0 or 5.3

so few questions and forgive me if i havent searched enough...

from what i gathered all i need to make it be a direct swap is front acc,intake,oil pan,balancer,and exhaust manifolds??

does it matter which year they come from?

i called a few places around here and almost no one has a 6.0 and if so they want 1200 and found a few 5.3 for 5-600 so might go that route just so i can drive it

thanks

aAZz

Get a 5.3 and bore it over to a 5.7 specs ull gain a little weight but it'll be cheaper than a 6.0

408Maro

iTrader: (14)

If I get a 5.3 can I just swap over what's needed and drive it like that?

aAZz

Yes u can leave it over and swap the intake and pan and it'll pretty much bolt right up. If u bore it out tho u can use ur old pistons and crank and make it a iron 5.7

408Maro

iTrader: (14)

I see thanks. Right now its just about getting it running so ill just swap it and lose some power. Thank you. What year must it be from?

aAZz

I would say from 01 and up. Mines an 03 and its identical to a ls motor except for the bore obviously

408Maro

iTrader: (14)

Perfect thanks

aAZz

No prob

00Wildcat

considering the same swap, any tuning issues?

chrisfrost

iTrader: (8)

You have gen 3's put in vehicles from 99 to 07 LM7, L59, Lm4, L33 ,,,,,,,L59 is flex-fuel and the LM4 and the L33 are both aluminum with the L33 being the high output 1 with 330 hp and 335 tq . Starting in 05 they started putting gen 4's in but were also putting gen3's in some vehicles . If You google any GM engine , then click wikipedia , it has general info for all of GM's engine line-up by engine family..........