subbie racer

i know i need the ls6 oil pump and i got an ls2 timing chain (i got my car tuned today and the guy who tuned it had a set of ls6 heads so i brought them) he said the ls2 timing chain is better to use since its stronger, and i also wanna upgrade the rocker arms but not sure what to get, i was looking at these ( http://www.summitracing.com/parts/SUM-G6980/ ) and can i reuse my ls1 springs? they didnt come with them and also do i need to upgrade lifters?



http://www.youtube.com/user/notsodar.../0/iAplh7nhyA0

my tuning i got today 367hp 366 torque

99screamindemon

i would just upgrade to the comp trunion stock rockers but that is just me and i would not use the ls1 springs but i guess it depends what you do for a cam?

subbie racer

it has a COMP cam, but idk the specs until i pull it out

RedRallyeZ

iTrader: (20)

get new springs and dont worry too much about the rockers right now. any sort of aftermarket cam is going to be much better served with stronger springs, also a way to protect that investment. check TSP's spring sets. Ive have been running their old design dual spring and titanium retainer kit for much longer than people said i should have been able to. some sort of aftermarket spring should be considered mandatory with a cam.

As for lifters, its a good idea, but not a necessity. The thing about them is that your old ones have some miles on them, and you have to remove heads to get them in and out. so while the heads are off, its probably a good idea. LS7 lifters are fairly cheap. once again, call TSP.

BrntWS6

iTrader: (7)

I only have 18K miles on my car and I changed to LS7 lifters and LS2 lifter treys since the heads were off. I'm sure I would have been fine but removing the heads wasn't something I wanted to do again anytime soon.

I stuck with my stock rockers but would have gone Yella Terra if I upgraded.

subbie racer

alright sounds good, i have a new question about the oil pump, do i have to drop the motor to do all this? the oil pan is pretty close to the cross-member

RedRallyeZ

iTrader: (20)

no, you can just loosen the pan and have enough play. ls1howto.com has a complete walkthrough

subbie racer

what about changing the oil pan gasket bit sure mines leaking

RedRallyeZ

iTrader: (20)

in the sticky about how to change rod bolts with the engine in the car, he gives a good walkthrough on how to drop the pan with the engine in the car

subbie racer

thanks man

garygnu

how many miles on the motor?get new springs,comp 918,pac 1218 ,etc.do a trunnion bearing upgrade.what push rods will you be using?

subbie racer

it has 151k supposedly it was freshen up before, im not sure the kinda push rods i need

need to get new head bolts, might go with arp, i wanna upgrade the connecting rod bolts (heard that the rod bolts are the cause of spun bearings) and bearings and im wondering if i can change out the crank bearings without having to drop the motor out

subbie racer

and do i need shorter push rods since the heads were shaved 25 thousands, i got the heads from Jeremy Formato (from fasterproms.net) who just did my tuning, he also gave me the chain and valve cover and told me to shave the heads 25 thousands

subbie racer

anyone?

BrntWS6

iTrader: (7)

Shorter than what? I'm running LS7 lifters, my heads are milled 20 thousands and I'm using 7.35 pushrods. I'd buy a PR checker for $20 to be sure though.

subbie racer

short than my stock pushrods if i can use my stock ones than great, less money to spend

BrntWS6

iTrader: (7)

You have to run hardened pushrods anyway or you'll bend the stock one's.

vettenuts

iTrader: (4)

You should measure to make sure of the length. If these are LS6 heads with the light valves, don't go crazy on valve spring stiffness. As suggested earlier, PAC 1218's would be a good choice. I would stick with stock rockers but upgrade the trunnion. Other option if the car has a lot of miles is new stock rockers, GM corrected the bearing issue several years ago.

00pooterSS

iTrader: (40)

Also if they are Z06 heads, not just 243 heads but actual Z06 heads with lightweight valves the valves are longer than normal so you will need to get the right size pushrod's for those vavles.

They are .030" longer

subbie racer

alright thanks guys, i seen the hardened ones on hawks and im pretty sure these are real z06 heads, i seen the car that it came off of, dont think Jeremy would lie and plus he has great feedback on his site