push rod length

Reply Subscribe

Thread Tools

Search this Thread

Apr 15, 2007 | 09:15 AM

j99fbody

Thread Starter

TECH Apprentice

iTrader: (1)

Joined: Aug 2005

Posts: 366

Likes: 0

From: Villa Rica, GA

push rod length

I just installed a new cam in my camaro, there is about 1/8 inch play between the rockers and valve springs after everything was torqued. Do i need longer push rods? I was told stock length pushrods would be fine but i know this cant be right.

Apr 15, 2007 | 09:25 AM

mead955i

On The Tree

iTrader: (1)

Joined: Feb 2007

Posts: 121

Likes: 0

From: Sanford, FL

i have the same consern with the torquer v3. what cam did you install?

Apr 15, 2007 | 09:27 AM

j99fbody

Thread Starter

TECH Apprentice

iTrader: (1)

Joined: Aug 2005

Posts: 366

Likes: 0

From: Villa Rica, GA

i got a 244/248 605/595 cam from vengence racing

Apr 15, 2007 | 09:40 AM

mead955i

On The Tree

iTrader: (1)

Joined: Feb 2007

Posts: 121

Likes: 0

From: Sanford, FL

from what i understand its all about the base circle. if its smaller than the stock base circle then if im understanding all this right it would require longer rods. im in the same boat as you so im hoping someone who knows for sure chimes in.

Apr 15, 2007 | 09:43 AM

cowboysfan

12 Second Club

Joined: Mar 2005

Posts: 1,498

Likes: 0

From: Corpus Christi

yes, you need longer p-rods. not not sure how longer p-rods from 0 lash to get correct preload on lifters but, I'm sure some one can help on this. take a reading on gap with feeler gage. use those numbers plus whatever reading for correct lifter pre-load. or just buy a measuring p-rod.

Apr 15, 2007 | 09:46 AM

j99fbody

Thread Starter

TECH Apprentice

iTrader: (1)

Joined: Aug 2005

Posts: 366

Likes: 0

From: Villa Rica, GA

do you know where i can get a measuring p-rod

Apr 15, 2007 | 09:57 AM

mead955i

On The Tree

iTrader: (1)

Joined: Feb 2007

Posts: 121

Likes: 0

From: Sanford, FL

http://www.thunderracing.com/catalog...vid=7&pcid=106

comp length checker

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Brett Foote

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Pouria Savadkouei

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Verdad Gallardo

7 Most Reliable High-Performance Engines GM Has Ever Built

Verdad Gallardo

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Apr 15, 2007 | 10:13 AM

cowboysfan

12 Second Club

Joined: Mar 2005

Posts: 1,498

Likes: 0

From: Corpus Christi

Quote:

Originally Posted by mead955i

hey cowboysfan, would you happen to know if the torquer v.3 from TSP requires longer p-rods?

nope!! dont know the cam base lobe measurements. if you have the cam measure the V.3 base lopes and compare to stock cam base lobes. if V.3 is smaller add that to stock length p-rods (7.400) if bigger then subtract. I believe V.3 will be smaller though. just check it...

EDIT: just did some research stock camshaft lobe base circle radius for-

inch (mm)
97-04 LS1 0.776 (19.7)
01 LS6 0.760 (19.3)
02 and up LS6 0.748 (19.0)

specs from the book "How to Build High-Perfromance Chevy LS1/LS6 V-8s".

Last edited by cowboysfan; Apr 15, 2007 at 10:30 AM.

Apr 15, 2007 | 11:03 AM

#10

Ramairbird

On The Tree

iTrader: (17)

Joined: Aug 2005

Posts: 193

Likes: 0

From: Rochester, NY

ttt

What cam did you take out? I assume it was ok before the new cam. You need to compare the base circles of the 2 cams to see if and what the difference is for starters.