C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Push rods

Thread Tools
 
Search this Thread
 
Old May 27, 2012 | 04:57 PM
  #1  
AP4EVER's Avatar
AP4EVER
Thread Starter
Advanced
 
Joined: Jul 2011
Posts: 76
Likes: 2
From: Goldsboro NC
Default Push rods

While working on replacing all valve stem seals over the weekend I have stumbled onto another problem. At least two of the push rods are damaged. The problem I am having is finding a proper replacement. I am going ahead and replace all of them. The current rods are .3125 diam. and 7.794 in length solid pieces with rounded ends as seen in pics. This engine was rebuilt in years past by po and a larger cam was installed. What can I replace them with without breaking the bank in cost.
I was looking at these:
http://www.jegs.com/i/Proform/778/66891C/10002/-1

Here is what the push rods look like:

Reply
Old May 27, 2012 | 05:25 PM
  #2  
AzMotorhead's Avatar
AzMotorhead
Limping across the line
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2002
Posts: 5,299
Likes: 109
From: Peoria Az
Default

Here's a quick read.GM Perf Parts catalog
Read page 67.And then search out Vendor GMPARTSHOUSE here for a price
Reply
Old May 27, 2012 | 05:25 PM
  #3  
7T1vette's Avatar
7T1vette
Team Owner
15 Year Member
Community Builder
Community Influencer
Top Answer: 5
 
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
Default

They may not be the correct length for the 'revised' valve train geometry. You need to determine the correct length rod size for the cam, heads, rockers and valves in your engine.
Reply
Old May 27, 2012 | 05:39 PM
  #4  
scottyp99's Avatar
scottyp99
Le Mans Master
15 Year Member
 
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
Default

Take a look at these:

http://www.summitracing.com/parts/HRS-95205/

Probably gonna need new rockers, too:

http://www.summitracing.com/parts/SUM-G6800/


Keep the shiny side up!
Scott
Reply
Old May 27, 2012 | 06:18 PM
  #5  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

I might try to take care of that oiling issue also and the underside of the rockers that those sat in
Reply
Old May 27, 2012 | 07:18 PM
  #6  
Indiancreek's Avatar
Indiancreek
Drifting
Supporting Member
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jun 2010
Posts: 1,781
Likes: 15
From: Oxford Ohio
Default

I'd check the rocker and lifter that the damaged pushrods were in. Might have been incorrectly adjusted in the past.
Reply
Old May 27, 2012 | 09:42 PM
  #7  
billla's Avatar
billla
Le Mans Master
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
Default

Originally Posted by 7T1vette
They may not be the correct length for the 'revised' valve train geometry. You need to determine the correct length rod size for the cam, heads, rockers and valves in your engine.


With that damage, something's clearly not right and the valvetrain geometry needs to be checked throughout.
Reply

Get notified of new replies

To Push rods





All times are GMT -4. The time now is 11:44 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE