| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
01-28-2026, 11:24 AM
|
||||
|
||||
D-port cylinder head blueprints
Does anyone have or know where I could find a print of the Pontiac D port cylinder head? I am wanting to make a CAD file of the exhaust ports/ bolt pattern sections so I can get some laser cut caps made for a couple of my storage engines (I know I can just tape them off but want to give this a try)
Thank You
__________________
NEVER DRINK DOWN STREAM FROM THE HERD 
|
|
#2
01-28-2026, 11:33 AM
|
||||
|
||||
|
Alternatively, you can buy a cheap set of gaskets and trace your pattern that way.
Or just do what everyone else does and tape them off.
__________________
 1966 Pontiac GTO (restoration thread) 1998 BMW 328is (track rat) 2023 Subaru Crosstrek Limited (daily) View my photos: Caught in the Wild |
|
#3
01-28-2026, 05:54 PM
|
|||
|
|||
|
buy a couple dport header flanges,cut gasket material to fit under the plates and bolt them to the heads.Tom
|
|
#4
01-29-2026, 12:02 AM
|
||||
|
||||
|
There are folks that sell bolt on plastic block-off "plates." I have used them on a few engines now, and of different brands.
__________________
79 Trans Am WS6 71 Formula 72 Formula 71 Firebird 69 Firebird |
|
#5
01-29-2026, 12:11 AM
|
||||
|
||||
|
__________________
79 Trans Am WS6 71 Formula 72 Formula 71 Firebird 69 Firebird |
|
#6
01-29-2026, 08:50 AM
|
||||
|
||||
|
Quote:
__________________
NEVER DRINK DOWN STREAM FROM THE HERD
|
| The Following User Says Thank You to HO LEMANS For This Useful Post: | ||
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
