Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics> Stock SBC pushrod length?
User Name
Password
lost password?   |   register now

Thread: Stock SBC pushrod length? Reply to Thread
Title:
  
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
03-19-2012 05:51 AM
Richiehd
Quote:
Originally Posted by chucksrt
I have been reading all sorts of pages on this. I found that the wear pattern should be no bigger than .060-.080 wide on the tip of the valve. I haven't measured mine yet , it looks centered but I keep hearing to have a narrow pattern. I want to triple check the mark just to be safe.
Sorry, you didn't say it was a roller, I assummed, my bad.
Pattern looks good, shortest pattern, in the center of the valve.
03-17-2012 01:24 PM
chucksrt I have been reading all sorts of pages on this. I found that the wear pattern should be no bigger than .060-.080 wide on the tip of the valve. I haven't measured mine yet , it looks centered but I keep hearing to have a narrow pattern. I want to triple check the mark just to be safe.
03-17-2012 12:08 PM
SSedan64 Length depends on parts used. Search for Valvetrain Geometry or Mid Lift & you should find what you need to figure correct length.

Stock Pushrod Lengths:
Flat Tappet = 7.794"
OEM Roller = 7.195"
Retro Roller = 7.290"
03-17-2012 11:51 AM
garrell.770
stock sbc

I had 1:8 to 1 full roller tip rockers and bee hive springs installed in my 6-0 LQ9 landspeed race truck two weeks ago, I also put 3/8" heavy wall pushrods in and they had to be a different length than original. The performance shop that did the work explained how to determine the correct length but I can't remember the method.

Garrell
03-17-2012 07:03 AM
chucksrt I built a 383 for my conversion van. It is a 96 Chevy Express 1500 with the Vortec engine. Summit said that stock pushrods for this engine are 7.195" long. I am using Edelbrock E-Tec aluminum heads and their site says thet I would require .100 longer pushrods with these heads (but they also say the pushrods are 7.800" long too). My engine uses a roller cam and lifters so I figure the pushrods are shorter due to this. I originally bought aluminum full roller rocker arms and with them I needed a much shorter pushrod-6.800" but once installed they were hitting the valve covers so I swapped to a set of steel rockers with a self aligning roller tip and now I am finding that I need a 7.200" pushrod. So I ordered them yesterday and I will hopefully have them by Monday. I just want to be done with this build! I have had soooo many issues while building (went through 2 blocks and 3 sets of heads), then I got the engine shoe horned into the Van and I then found I had more issues and went through (2 sets of lifters and 3 sets of rockers) So I would really love this to be done soon!
03-17-2012 06:30 AM
garrell.770 I still struggle with my memory problem but there use to be a method of measuring to get the correct pushrod length, can't it vary with rocker arm ratio, cam specs etc. Do you know the engine is stock from Gm?
I know I didn't help any, just mainly thinking out loud.

Garrell
03-17-2012 05:31 AM
Richiehd
Quote:
Originally Posted by chucksrt
Called Summit and they said that the stock length is 7.195"
If its a Small Block Chevy, stock length is 7.800.
and the pattern looks good
03-16-2012 05:17 PM
chucksrt Called Summit and they said that the stock length is 7.195"
03-16-2012 03:51 PM
chucksrt
Stock SBC pushrod length?

I am trying to figure out how long the stock pushrod is because when I measured to check what length I need it looks a hair taller than stock. I measured my pushrod to be 7.200" (length checker is 6.800" and I had to turn it out 8 full turns, each turn is .050"). The stock pushrod is only a little shorter so it's not a complete turn or .050 shorter.

I attached a pic of the valve stem tip wear pattern, does it look ok? Thanks, Chuck

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -6. The time now is 09:59 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.