j99fbody

iTrader: (1)

just put my engine in my car, built a 383 stroker with patriot ls6 style heads. i am gettting alot of noise, a loud ticking. i have new lifters and hardened pushrods but i still have my stock rockers in the car. The car has 231/237 595 lift cam. Is it possible the rockers could hit valve covers or dose anyone have any other ideas.Please help.

ILLWS6

iTrader: (13)

The rockers won't hit the valve covers with that cam. Maybe a loose rocker? Does it sound like a single tick or all of the valves ticking? Is it possible that your pushrods are too short? I know that if you pinch the o-ring installing the oil pump it will cause oiling issues that can cause lifter noise. Just trying to throw some ideas out there for you.
let us know what you find.
Robert

j99fbody

iTrader: (1)

im using stock length pushrods, and it dose sound like all the rockers are noisy

j99fbody

iTrader: (1)

is it possible that the rockers are to tight, i got all my torque spec from ls1howto.com and torqued everything to their specs

ILLWS6

iTrader: (13)

I doubt it. I used that how to myself with no problems. Does patriot mill the heads at all?

j99fbody

iTrader: (1)

i dont know

j99fbody

iTrader: (1)

i guess i will be pulling valve cover back off just to see if i find something, car seemed to run fine just real noisy.

redtail2426

iTrader: (10)

if the heads are unmilled and your using stock head gaskets then the pushrods will probably be a little too short.Get some comp 7.425" to get some more preload.

Gunnar@Patriot

iTrader: (20)

Our LS6 style heads will be right at factory deck height.

adillhoff

If all else fails make sure you're not losing oil somewhere.

j99fbody

iTrader: (1)

thanks for the info,m i will look into it

cantdrv65

iTrader: (3)

It will be a little noiser than stock because of the heavier seat pressure springs. It shoudnt be MUCH noiser though. No oil and it will tick like a MF.

j99fbody

iTrader: (1)

i pulled the valve cover and looked at the rockers, im not positive if it is getting enough oil when it is running but there was plenty of oil on everything. some of the rockers seem to have a little play in them. Is this normal and if so how much should they have. Could that be causing my noise.

777

iTrader: (21)

haha, no. Rockers should be tight and have absolutly zero play. If there is play in the rockers you need to fix that asap. If you followed ls1howto.com's instructions I don't see how they could have play unless you just forgot some.

sho-me speed

iTrader: (55)

you might need longer pushrods. The base circle on that cam is smaller thatn the stocker. I had to go with 7.425s on mine with my new cam.

j99fbody

iTrader: (1)

all i got from ls1howto.com was torque specs and everything is torqued wright. there is just a little play between spring and rocker. i think i may try some longer pushrods

02RedHawk

iTrader: (17)

Like that the rocker can teeter-totter from making contact with the valve and having a gap?

Too short of pushrods, and your geometry is likely off.

98FiveSeven

iTrader: (1)

what size lift is it when you need to upgrade to adjustable rockers?

777

iTrader: (21)

It's not the lift, it's the base circle of the cam and the whether the heads have been milled any. Also if you choose a different degree head you will need to change as well.