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> Engine> SBC heads with weird valve seals
User Name
Password
lost password?   |   register now

Thread: SBC heads with weird valve seals 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)
05-04-2006 07:40 PM
RPM The stock o rings will work fine if the stock oil sheild is there. You have to compress the spring then install the o'ring then the locks. If you put the o'rings on first they won't work.
05-04-2006 06:13 PM
GoneNova/406 positive stop viton seals is what most engine builders recommend,
summit has them and shows a picture of them.
05-04-2006 03:56 PM
302 Z28
Quote:
Originally Posted by TerroRx7

so is it enough to use the O-rings only ?
GM has been doing it for 50+ years.

Vince
05-04-2006 03:39 PM
TerroRx7 most 350s I have seen have both O-rings + umbrellas

this engine only have the O-rings but it is burning some oil



so is it enough to use the O-rings only ?
05-04-2006 05:47 AM
302 Z28 Regular 350 SBC valve seals are just "O" rings. The umbrella type seal you show usually requies the valve stem boss to be machined.

Vince
05-04-2006 02:54 AM
TerroRx7
SBC heads with weird valve seals

hello all

I bought a 1986 GMC K15 which has a mexican reproduction 350 which was rebuild recently

after inspecting the heads I found no valve seals and they won't accept regular 350 valve seals

I've tried many types and I found a set of stock 454 Umbrella style seals that fits perfictly



but after mounting the springs I found that they touch the seals even when uncompressed


what should I do ?
Replace the springs with something bigger ( wider ) ? stock? aftermarket?
try other seals ?

thanks

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 03:42 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.