Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Push Rod Length

Thread Tools
 
Search this Thread
 
Old Jun 22, 2008 | 08:56 PM
  #1  
dirt track racer 81's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: Jun 2005
Posts: 9,050
Likes: 0
From: Hennessey, Oklahoma
Default Push Rod Length

I need to know what pushrod length I need for 243 heads that have been milled .030 Motor is a flat top 370 with a 244/248 .612/.615 112 lsa comp cam
Reply
Old Jun 22, 2008 | 09:19 PM
  #2  
Randy WS6's Avatar
TECH Addict
iTrader: (69)
 
Joined: Oct 2002
Posts: 2,755
Likes: 2
From: Baxter,KY.
Default

Must use a push rod checker to get the right preload and wipe pattern on the valve stem .Plus you need to know what thickness head gasket you ll be using
Reply
Old Jun 22, 2008 | 09:27 PM
  #3  
dirt track racer 81's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: Jun 2005
Posts: 9,050
Likes: 0
From: Hennessey, Oklahoma
Default

.040 head gasket
Reply
Old Jun 22, 2008 | 09:33 PM
  #4  
dirt track racer 81's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: Jun 2005
Posts: 9,050
Likes: 0
From: Hennessey, Oklahoma
Default

honestly im tired of ****** with my truck and its been settin in my driveway for 2-3 months now with the heads off and trans #10 toast. still have 1st and 2nd gear, i just want to get it to where i can drive it around town till i get the trans fixed. my other half is kinda pissed its sitten in the drive way and were still makin truck and insurance payments on it and its not movin..sorry with my little rant but i just figured some one here has had close to this set up and see what length they used
Reply
Old Jun 22, 2008 | 09:43 PM
  #5  
Randy WS6's Avatar
TECH Addict
iTrader: (69)
 
Joined: Oct 2002
Posts: 2,755
Likes: 2
From: Baxter,KY.
Default

I would say around 7.350" to 7.375" ,Because heads shaved .030" and head gaskets .040" stocker are .055" so a total of .045". so you gained .045" closer preloads in the lifter so you need a shorter pushrod.
Reply
Old Jun 22, 2008 | 09:53 PM
  #6  
dirt track racer 81's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: Jun 2005
Posts: 9,050
Likes: 0
From: Hennessey, Oklahoma
Default

thanks man..sorry to say im half assin it but i just want it rollin slowly tired of gettin tickets too..looks like ill go with the 7.350
Reply
Old Jun 22, 2008 | 10:20 PM
  #7  
Randy WS6's Avatar
TECH Addict
iTrader: (69)
 
Joined: Oct 2002
Posts: 2,755
Likes: 2
From: Baxter,KY.
Default

I have a brand new set of Trick Flow hardened 7.350" if your interested 80.00 shipped
Reply
Old Jun 22, 2008 | 10:46 PM
  #8  
Sales2@Texas-speed's Avatar
LS1Tech Premium Sponsor
iTrader: (5)
 
Joined: Jan 2008
Posts: 5,053
Likes: 7
From: Texas!
Default

Originally Posted by Randy WS6
I would say around 7.350" to 7.375" ,Because heads shaved .030" and head gaskets .040" stocker are .055" so a total of .045". so you gained .045" closer preloads in the lifter so you need a shorter pushrod.
What about the base circle of the camshaft? What about stock length NOT being 7.400" (it's shorter than that FYI)?

I'd say 7.375" or so will be close...but your best bet really is to measure, or at least check swipe pattern.
__________________


Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!

COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Brett Foote
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo




All times are GMT -5. The time now is 12:10 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE