mikeroupe

Hi all,
Need some help, I installed gt 40p heads on my stock 1988 5.0 HO and when i tighten down my rocker i have alot of lash left, do i need to get longer push rods? or is there something else i need to do?

Would anyone know the length of the push rod if that is the problem?

Thanks in advance for any help

Mike

p.s. i also installed new lifters if this helps anyone to help me

mjr46

if you are using stock pedastal rockers and stock push rods and a stock cam, the stock length are fine, the lifter plunger collapse when no hydraulic pressure is present which is why yuo have lash, no worry, however if you have a non stock cam and are using roller rockers, you need to measure for length, no ifs ands or buts...

mikeroupe

this is my first head install, I`m using stock pedastal rockers and stock push rods and a stock cam. So if i get everything back together and adjust then,everything should work?

Thanks alot for your help. Thought my pony broke a leg and was going to have to shot it.

Thanks again for your help

Mike

mikeroupe

one more question, is there a certain way,direction for the lifters to be installed? meaning the oil hole on lifter

Bubba 95SN

Lifters need to pump up. Can always take the distributor out and spin the oil pump drive rod counterclockwise. Spin with a drill and get oil in lifters. Just start will quit rattling in couple minutes.

mikeroupe

Thanks guys..... have a great weekend

Mike

mikeroupe

ok got heads on and car running....now the engine keeps reving up and down from about 1000 rpm to 2000 rpm... i can make it stop by turning down the timing but then the timing is to low and just pops... if anyone has any ideas i sure would be grateful

Thanks in advance
Mike

rmodel65

probably have a vacuum leak on intake did you tighten the intake in the correct order with a torque wrench?

mikeroupe

Thanks was a vacum leak.......running good now

Thanks for everyones help

Mike