need a whole rotating assembly for a 5.3, with flat tops, thats going to be ran on 862 heads (dunno if the 5.3 got a different set of heads than the 4.8) im going to spray this motor so the internals got be good, any reccommendations on any kits or manufacturers for the 5.3 stuff

 

look in the classifieds, or post up there " WTB: 5.3 shortblock"

thats what i would do should be able to find one under $300 for a short block

 

well i already have a block and heads, just need some reccommendations on the rest, like rods and pistons, i dont kno the length of the rods or any of the 5.3 specs, i want to go forged with it all, thanks

 

this is where we talk about what your expectations are, what are you gonna turn it up to .. how much juice, etc.. i think the stock pistons/rods are fine to 6500 rpm or so, and fine with 150-200 shot, as long as your tune/fuel is dead on..

i would be more concerned with the valvetrain i.e. good stainless valves, good springs, hardened PR's, etc..

unless you are going for a big amount of spray like 200-300.. or going to turn it up 7000+, you are talking a good amount of money here for forged parts.

IIRC, 5.3 pistons arent made in an off the shelf forged size. i think you would have to bore your block to accomodate a forged 5.7 piston... which, IIRC, TooTall already has done and was selling the whole assemble for a decent price. would be less work/cheaper to PM him and ask him.

he is a very knowledgable guy, and could presumably answer all of your questions on the forged build you are interested in

 

ok, i dont plan to turn it over 6500 rpm, so where can i get some stock rods and pistons at a reasonable price? also should i run a flat top or a dished piston

 

Ebay, I have ordered a set of take out LS2 rods and pistons and as set of LQ4 pistons and rings. I don't know what you can find, I have my motor as the machine shop and they are all in great shape. Let me know if I can help since we live so close. Just PM me, if LS2 pistons or whatever will work they are easily found it seems. Just research and see.

 

FWIW Wiseco did recently start making 5.3L Forged piston.

In this thread Directly from a sponsers mouth...

https://ls1tech.com/forums/generatio...ine-build.html

 

thanks skyhigh, and thanks fastbrick im going to look into those

 

It's about f'in time someone started making these. Would've save me a lot of crap!

 

i sent a message to the representative on the site from texas speed, i havent got anything back on it yet, but yea this will be the way i go