Cometic head gaskets missing holes??? - Hot Rod Forum : Hotrodders Bulletin Board
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
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 05-14-2011, 01:46 PM
Registered User
 
Last photo:
Join Date: Apr 2011
Location: Newark, Delaware
Posts: 175
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Cometic head gaskets missing holes???

We went to bolt the AFR 227's to the Little M block today, using the Cometic gaskets that are SUPPOSED to be the right ones. Problem is, the gaskets are missing 2 holes that are in the block deck and the head surface?? The gaskets are .045" part #H1075SP3045S. They state they're for 4.155" bore with no steam holes. The Little M block has no steam holes. Here's a picture of the bottom of the head with the 2 holes in question, circled. They're not in the gaskets.

They're in the block, too.



Are my gaskets supposed to have these holes? They're coolant holes.

Frank
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 05-22-2011, 04:54 AM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
Did you get this figured out? Contact Cometic?
I would think the holes should be in the Gaskets.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 05-22-2011, 05:57 AM
CNC BLOCKS NE's Avatar
CNC Blocks Northeast
 
Last photo:
Join Date: Sep 2006
Location: NORTHEAST
Age: 54
Posts: 1,415
Wiki Edits: 0

Thanks: 1
Thanked 10 Times in 10 Posts
Quote:
Originally Posted by 10scnd70
We went to bolt the AFR 227's to the Little M block today, using the Cometic gaskets that are SUPPOSED to be the right ones. Problem is, the gaskets are missing 2 holes that are in the block deck and the head surface?? The gaskets are .045" part #H1075SP3045S. They state they're for 4.155" bore with no steam holes. The Little M block has no steam holes. Here's a picture of the bottom of the head with the 2 holes in question, circled. They're not in the gaskets.

They're in the block, too.



Are my gaskets supposed to have these holes? They're coolant holes.

Frank
There should be to small appox. 1/8 holes in that part of the gasket also on he Little-M blocks we have to open up the center hole on the bottom and the top hole in the center has to be matched to the gasket for proper flow.

The holes that are need in the gasket match the small notches in the deck of your block as we use to have to put our own ntches before Dart started machining the holes.

Here is a pic of the areas we had to match to the gasket.

Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 05-22-2011, 06:03 AM
Registered User
 
Last photo:
Join Date: Apr 2011
Location: Newark, Delaware
Posts: 175
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Yes. Cometic gave me the correct gasket number. The only difference are those 2 holes. I have our old set that has the holes, so I asked if I could use them as a template to drill the holes myself.. He told me that would work, too. I really commend Cometics customer service. They answered my e-mail right away, and even sent me a icture of the correct gasket.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cometic Head Gaskets bj383ss Engine 1 03-27-2011 09:40 PM
Cometic Head Gaskets on Olds 403 Engine bandit79jun Engine 40 12-29-2010 03:27 PM
Cometic head gaskets, Copper RTV spray before install? ForceFed86 Engine 1 05-25-2010 09:25 AM
cometic head gasket cowbay Engine 6 05-05-2008 09:51 AM
cometic head gaskets. TVR383 Engine 8 04-07-2004 05:53 PM


All times are GMT -6. The time now is 10:20 AM.


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.