casey.shoemake

iTrader: (3)

Hey, you guys with 4.8/5.3 heads what size pushrods are you running?

I just picked up a fresh rebuilt ls1 shortblock for my 2000 rcsb 4x4silverado. My truck has a 4.8 with a 222/224 .568 .571 113, Thorley headers, 4.10s, and hp tuned by wade lieck at hpe. My current plans are to swap over the 862 heads, cam and headers onto the ls1, but im not sure what size pushrods to go with. Ill be going with a circle-d 3200 stall also, later on down the road ill pick up some 243/799s for too. The cam i have now is pretty big for a 4.8 but how do yall think itll be in my ls1? I put down a weak 260 hp and 265? tq with the 4.8, hopefully ill be in the 300s with the ls1.

Jon@Texas-Speed

iTrader: (18)

PR length will vary a bit depending on base circle of the cam, lifters, gaskets, etc. Your best bet is to buy the Comp PR length checker measure. It will save you a lot of hassle down the road and take the guess work out of your build.

http://www.texas-speed.com/shop/item...d=913&catid=51

Jon

BIG_MIKE2005

iTrader: (116)

For what its worth I'm running stock 862 castins worked over with a 224/224 .581/.581 114 cam, FelPro stock replacement gaskets & 7.400 pushrods. Very minimal valvetrain noise. Car has been running fine & strong for about 3yrs now on that combo.

casey.shoemake

iTrader: (3)

yeah, ill have to get one. I was just seeing if anyones done this with their setup.



This is good news! lol I was going to go with stock replacement gaskets also, i was thinking the stock length 7.400 would work fine. Just wanted to make sure.

bww3588

iTrader: (49)

if you want to make sure, check it. it only takes about 20 minutes. you said the LS1 shortblock is rebuilt, how do you know someone didnt deck it?

casey.shoemake

iTrader: (3)

Ill check it for sure. Im not about to half *** it. lol It came out of an 04 z06 (ls6, but since i didnt get the heads with it ill call it an ls1) then into a 2001 TA, and then a bearing went out. Instead of fixing it he had hpe pull it. I bought it and they sent it to a machine shop. They said it didnt need to be decked. The motor had about 20,000 mi.

bww3588

iTrader: (49)

regardless if they "said" it didnt need decked, doesnt mean it didnt happen sometime between the 2 times its been in and out of a car.

like i said, its simple and quick to check PR length. and the peace of mind is worth it.

casey.shoemake

iTrader: (3)

Yeah i forgot to mention that. Its possible that it could have been machined before but who knows. Like i said, ill buy a checker just wanted to see what people had to say.