06hemi

i feel sure theres a tread on here somewhere about how to do this but i cant find it ive got a 93 z28 and am tring to do this w/ heads on car any tips on how to go about it would be greatly appreciated also if anybody knows the foot/pounds to tourqe the roller rockers down to or how to suggest the best way to adjust them i dont even know where to start with the spring removal part ............i need help

thehammer69

iTrader: (2)

I have no desire to instruct how to change the valve springs with the heads on the car. There are plenty on here that will point you in the right direction.

However, I will let you know that you don't torque down your rockers.

BigBadWhitey

iTrader: (3)

http://www.shbox.com/ci/cam_removal.html

Hope he doesnt mind me linking this.

Scroll to the bottom, click on valve spring swap

gregrob

iTrader: (8)

Get a Tim's tool, and figure out what you're doing BEFORE you start.
If you don't know how to adjust the rockers I wouldn't be attempting the swap yet.

JAKEJR

I created a step by step procedure for setting lifter preload which you'll need once you get the springs swapped. It's posted as a STICKY on the LS1LT1.COM on the Engine Tech Board.

I never got around to typing up a step by step on swapping springs though. Maybe someone else has one already prepared and will post it here or post a link to it.

I could type one up, but to do the swap correctly, it's somewhat involved. Many seem to think all you do is pop off the old ones and pop on the new ones, but it's more involved than that. To do it RIGHT, the installed height and seat pressure needs to be checked and verified.

Jake

shbox

...or just go directly here:

http://shbox.com/ci/valve_spring_swap.html

ebeard

Yep it's not a ford. You have to use the zero lash method. Shbox is a great resource for that.

gregrob

iTrader: (8)

Or an lsx ...

JAKEJR

Or an LT4

Jake

SS RRR

iTrader: (2)

er... what?

shbox

Factory LT4s has shouldered rocker studs and the rockers were torqued down (like LSxs).