Quick push rod question
02-26-2012, 12:18 AM
#1
Quick push rod question So, before i buy up some specialty tools ill only use once, such as a pushrod length checker, i need to determine if i need one.
Stock heads, stock lifters, block was surfaced but got the appropriate head gaskets to make up the difference, scorpion non- adjustable rockers, it may be a dumb question but im so close to finishing my motor, can i use the stock length pushrods with this setup? Or would it be better to go ahead and get a length checker and check anyway?
Stock heads, stock lifters, block was surfaced but got the appropriate head gaskets to make up the difference, scorpion non- adjustable rockers, it may be a dumb question but im so close to finishing my motor, can i use the stock length pushrods with this setup? Or would it be better to go ahead and get a length checker and check anyway?
02-26-2012, 12:33 AM
#2
It sounds like the stock pushrods would probably be close. You could check the lifter pre-load with the pushrods you have on a couple of cylinders to see what it comes out to be. The rocker arm bolt should turn about 1-1/4 turn when torqued from zero valve lash to 22 ft-lbs.
Of course, many will say to use a pushrod lenght checker for the ultimate check.
Of course, many will say to use a pushrod lenght checker for the ultimate check.
02-26-2012, 08:11 AM
#3
A pushrod checking tool is $20 bucks shipped to the door.
Many guys use the stock pushrod and tighten down the lifter to check for length with out issues also. It was quickly explained in the last post.
Many guys use the stock pushrod and tighten down the lifter to check for length with out issues also. It was quickly explained in the last post.
02-26-2012, 11:35 AM
#6
It sounds like the stock pushrods would probably be close. You could check the lifter pre-load with the pushrods you have on a couple of cylinders to see what it comes out to be. The rocker arm bolt should turn about 1-1/4 turn when torqued from zero valve lash to 22 ft-lbs.
Of course, many will say to use a pushrod lenght checker for the ultimate check.
Of course, many will say to use a pushrod lenght checker for the ultimate check.
I forgot to be honest, 6.125 rods, had it decked, he told me i needed a minimum of .055 head gasket, that's all I know.
Custom FTI cam.
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02-26-2012, 07:29 PM
#8
Yep ... with new info that there's a different cam, the length needs to be measured somehow. A lenght checking tool is the best. Using a stock pushrod and measuring how many turns the rocker arm bolt takes to 22 ft-lbs is the 2nd best option.
This thread has lots of new info on what pre-load is obtained by X number of rocker arm bolt turns.
https://ls1tech.com/forums/generatio...-pre-load.html
This thread has lots of new info on what pre-load is obtained by X number of rocker arm bolt turns.
https://ls1tech.com/forums/generatio...-pre-load.html
02-26-2012, 08:51 PM
#9
Yep ... with new info that there's a different cam, the length needs to be measured somehow. A lenght checking tool is the best. Using a stock pushrod and measuring how many turns the rocker arm bolt takes to 22 ft-lbs is the 2nd best option.
This thread has lots of new info on what pre-load is obtained by X number of rocker arm bolt turns.
https://ls1tech.com/forums/generatio...-pre-load.html
This thread has lots of new info on what pre-load is obtained by X number of rocker arm bolt turns.
https://ls1tech.com/forums/generatio...-pre-load.html
ok good to know, i know on my freinds old SBC he used a solid lifter to check the length with a length checker, that he no longer has. Would it be better to do this that way instead of using the hydraulic lifter? I havent done this before so i have to ask.
