The Ford Torino Page Homepage
Forum Home Forum Home > Powertrain Specific Forum > Small Block Forum
  New Posts New Posts RSS Feed - Intake Manifold Water Leak
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Intake Manifold Water Leak

 Post Reply Post Reply
Author
Message
Greg73Oregon View Drop Down
Member
Member


Joined: 23-February-2021
Location: Roseville, CA
Status: Offline
Points: 116
Post Options Post Options   Thanks (0) Thanks(0)   Quote Greg73Oregon Quote  Post ReplyReply Direct Link To This Post Topic: Intake Manifold Water Leak
    Posted: 29-September-2021 at 10:27AM
Strange!
I installed a Ford Performance Z2 head on my 1973 351W.
My stock 2bb intake with EGR casting had 12 bolts.  A friend gave me a 1970 2bb head that doesn't have the EGR casting.  It has 16 bolt holes.
Since there is no threading in the heads for the extra bolts, those intake bolt holes are open.
Finished putting the engine together, cranked it - everything fine.
Started filling the radiator, and coolant started coming out of the rear open hole (2nd to the last bolt) on each side.
Any ideas?
I thought I read somewhere that you have to tap the 2nd to the last hole, and install a bolt???
Thanks.  
GKF
Back to Top
handsofstone View Drop Down
Senior Member
Senior Member


Joined: 13-April-2018
Location: Northeast
Status: Offline
Points: 3465
Post Options Post Options   Thanks (0) Thanks(0)   Quote handsofstone Quote  Post ReplyReply Direct Link To This Post Posted: 29-September-2021 at 11:54AM
 Any pics? Sounds like you are going to be pulling the manifold. It could probably be tapped in place but I would be hesitant to leave the cuttings in the engine. You have two different heads on the engine?

Edited by handsofstone - 29-September-2021 at 11:53PM
Back to Top
Greg73Oregon View Drop Down
Member
Member


Joined: 23-February-2021
Location: Roseville, CA
Status: Offline
Points: 116
Post Options Post Options   Thanks (0) Thanks(0)   Quote Greg73Oregon Quote  Post ReplyReply Direct Link To This Post Posted: 30-September-2021 at 6:35AM
A pair of Ford Performance M-6049-Z2
A very close examination of the ports (etc.) are exactly the same as the OEM head.
I'm sure I would have the same issue if I had used the stock heads.  After the leaks, it flashed on me that I remember reading somewhere to drill/tap the back 2nd from the last bolt holes, and install bolts in them.  I just can't remember where I read it.
The intake manifold p/n: D1AE-9425-CA

GKF
Back to Top
californiajohnny View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 05-October-2013
Location: winlock, wa
Status: Offline
Points: 14221
Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 30-September-2021 at 9:58AM
69-74 351w had 16 bolts 75+ had only 12 bolts, either will physically interchange but i like the idea of having the extra bolts around the water passages... so i opted to find an offy intake with the 16 boltsWink
JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U
68 MUSTANG FB CONVERSION
Back to Top
Greg73Oregon View Drop Down
Member
Member


Joined: 23-February-2021
Location: Roseville, CA
Status: Offline
Points: 116
Post Options Post Options   Thanks (0) Thanks(0)   Quote Greg73Oregon Quote  Post ReplyReply Direct Link To This Post Posted: 30-September-2021 at 5:20PM
Do you have a part number?
GKF
Back to Top
californiajohnny View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 05-October-2013
Location: winlock, wa
Status: Offline
Points: 14221
Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 30-September-2021 at 9:47PM
i don't! i bought it used on ebay years ago...
JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U
68 MUSTANG FB CONVERSION
Back to Top
Rockatansky View Drop Down
Senior Member
Senior Member


Joined: 30-July-2010
Location: On The Road
Status: Offline
Points: 5639
Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 01-October-2021 at 12:58PM
here's a link to a copy of the Offy catalog

http://www.exeterautosupply.com/Docs/Offenhauser%20catalog.pdf
72 GT Ute
   
Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.05
Copyright ©2001-2022 Web Wiz Ltd.

This page was generated in 0.078 seconds.