casper's6liter

My idiot brother in law decided to take my rocker arms off the heads when i went inside for a drink.. What are the torque specs for the rocker arm!!!!!

93 LT1 Vette

TQ on the polylocks or factory rocker nuts?

69gto96z

iTrader: (13)

I did not know there was a torque spec, I adjust them to zero lash with the car running, and 1/2-3/4 past there to set them.

93 LT1 Vette

Yeah, may be a Tq on the allen part of the polylock but factory stuff can be tightened never achieving any tq and collapse the lifter or hang a valve open.

casper's6liter

factory nuts. I've don't know nutting about rocker arms. The guy across the street said just torque them down and i will be ok

madhatter

LT1s do not have a torque spec. They are adjusted to zero lash then set to whatever spec is needed depending on lifter/rockers/personal preference. Info can be found on Shoebox's website on how to adjust them properly.

93 LT1 Vette

Is the motor together in the car and able to start it up?

casper's6liter

the motor is in the car. I had to pull the head to get a snapped bolt out

F0x Slaughter

There is two options. While the car is off or on.

With it on, the rockers will make noise. Tighten the rockers until all noise stops.

trilkb

iTrader: (4)

Use the torque wrench to beat the **** out of your brother in law...then follow what the other people said lol

Valkyn

iTrader: (8)

Stock torque on the rocker studs is 50 ft lbs

http://shbox.com/1/4th_gen_tech2.html#adjust_valves

tonskiguy

iTrader: (3)

Do not torque the nuts to 50 ft lbs

casper's6liter

he's never aloud to touch the impala ever again. I wanted to go ufc on his *** lol. Thanks for all the help fellas

casper's6liter

50 ft lb might collapse a valve ???????

Valkyn

iTrader: (8)

The rocker studs are what the rocker nut screws onto, not the nut itself. Read shoebox's guides

casper's6liter

gotta cha thank you sir

69gto96z

iTrader: (13)

I gotcha, I have never used a torque spec for my polylocks either, I just tighten the allen, and then give the allen and bolt head about an 1/8th of a turn together, it works like a champ.

LT4buick94

Installing 1.6 rocker arms on stock LT one should I use stock springs?

93 LT1 Vette

Look up SLP's 330 for LT1's on Google. Basically it is a CAI, airfoil, exhaust and a set of and 1.6 roller rockers. Read the article it's actually pretty good, they state that roller rockers can be used with stock springs. They do recommend the spring upgrade if the motor has more than 100k on it.

quik95lt1

iTrader: (7)

good god........theres another thread going on about how to lash your HR cam valves........go look in the LT1 section its there and will answer your question..........you dont just "torque" your rocker arms on lol