Head Casting Number Help - Pontiac GTO Forum
User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 13 (permalink) Old 04-04-2011, 05:11 PM Thread Starter
 
Join Date: Apr 2009
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Head Casting Number Help

Can anyone tell me if these are the correct heads for my 1968 GTO? WT 400/350 with 4-speed. Block casting number 9779001 and it does have the vin stamped on it. Correct 9790140 intake and Quadra Jet carb as well. Here is a photo. Thanks
dillon14 is offline  
Sponsored Links
Advertisement
 
post #2 of 13 (permalink) Old 04-04-2011, 05:59 PM
Super Moderator
 
BearGFR's Avatar
 
Join Date: Aug 2008
Location: Springtown, TX
Posts: 5,737
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 122 Post(s)
Garage
Quote:
Originally Posted by dillon14 View Post
Can anyone tell me if these are the correct heads for my 1968 GTO? WT 400/350 with 4-speed. Block casting number 9779001 and it does have the vin stamped on it. Correct 9790140 intake and Quadra Jet carb as well. Here is a photo. Thanks
Hey Dillon,
Unfortunately, the numbers in the photo don't really tell us anything. There should be a large 2-digit code directly on the tops of the center two exhaust ports, and a 4 character date code either on the side just below the valve cover gasket, or inside under the valve cover.

If you can get those, then they can be ID'd

Bear

BearGFR
Springtown, TEXAS
BearGFR is offline  
post #3 of 13 (permalink) Old 04-04-2011, 06:16 PM
 
Join Date: Mar 2011
Location: Texas
Posts: 704
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
casting date codes
pontiac is offline  
 
post #4 of 13 (permalink) Old 04-04-2011, 08:12 PM
Former Moderator
 
68greengoat's Avatar
 
Join Date: Sep 2005
Location: Northern Wisconsin
Posts: 3,523
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 1 Post(s)
A visual to Bear's reply......




SOLD.....
462ci, 4spd
Performer Intake, Mild Cam
Pertronix Ignitor III
Accel Super Coil, Accel 8.8mm Wires
68greengoat is offline  
post #5 of 13 (permalink) Old 04-04-2011, 08:35 PM
 
FNG69's Avatar
 
Join Date: Nov 2009
Location: Wichita, Ks
Posts: 855
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My book for 68 GTO intake has # 9794234. And 9794233 for RA intake..Heads would be 9791216 (16) for 4bbl.... RAs are 31s but resembles "37".... & RAII are (96)..
FNG69 is offline  
post #6 of 13 (permalink) Old 04-05-2011, 04:56 AM Thread Starter
 
Join Date: Apr 2009
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks, Will take off the valve covers today.
dillon14 is offline  
post #7 of 13 (permalink) Old 04-05-2011, 08:21 AM
 
Join Date: Jan 2011
Posts: 173
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
No need to take off the covers. The two digits are located outside, on the surface of the protruding exhaust ports (where the "7F6" is in the pic provided). If the '68 heads, there WILL be a "16" there.

Jim
Mr. P-Body is offline  
post #8 of 13 (permalink) Old 04-05-2011, 09:42 AM
Former Moderator
 
68greengoat's Avatar
 
Join Date: Sep 2005
Location: Northern Wisconsin
Posts: 3,523
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 1 Post(s)
May want to recheck that block casting number too. I'm finding no information with that number.
It wouldn't be a 9790071? Just wondering if the numbers where not in the right order...



SOLD.....
462ci, 4spd
Performer Intake, Mild Cam
Pertronix Ignitor III
Accel Super Coil, Accel 8.8mm Wires
68greengoat is offline  
post #9 of 13 (permalink) Old 04-05-2011, 12:31 PM
 
Join Date: Jan 2011
Posts: 173
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Probably "988" (last three).

Jim
Mr. P-Body is offline  
post #10 of 13 (permalink) Old 04-05-2011, 04:13 PM Thread Starter
 
Join Date: Apr 2009
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Too late, I took the valve covers off and then saw where the two numbers were. Obscurred by paint and some rust, they are number 16 heads. And yes, I also screwed up the block casting number which should have read 9790071. I am 61 you know and run a prison having worked there for over 37 years so my mind is a little mushy. The good news is that the intake is correct 9790140, the Quadra Jet is correct 7028263, the heads are correct, the vin is on the block as well as the WT and I believe the exhaust manifolds are correct but need to remove them to get a good look at the numbers. The transmission has a casting number of 3925660 which is correct for a 68-70 Muncie Transmission but I am not sure where to look for the vin. Also wondering about the distributor but don't know where to look for that number either. Any help with these would be appreciated? Thanks.
dillon14 is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user 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:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
1964 GTO Rear axle casting number ID mike64gto 1964-1974 Tempest, Lemans & GTO Undercarriage, Frame, Transmission and Differential Discussions. 4 10-06-2011 09:30 PM
65 GTO casting # 65trips 1964-1974 Tempest, Lemans & GTO General Discussion 11 11-01-2010 07:46 PM
Diff casting number location DrBoeing 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 5 05-02-2010 10:38 AM
Casting Numbers mashype 1964-1974 Tempest, LeMans & GTO Data Plate, Vin Tag and Drive Train Numbers 7 05-13-2009 10:40 AM
Casting Numbers jbranontn 1964-1974 Tempest, LeMans & GTO Data Plate, Vin Tag and Drive Train Numbers 4 04-06-2009 08:48 PM

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

 
For the best viewing experience please update your browser to Google Chrome