#1  
Old 01-21-2021, 03:26 PM
ramairformula74 ramairformula74 is offline
Senior Member
 
Join Date: Aug 2002
Location: williamsport,pa
Posts: 178
Default 1973/74 4X cylinder heads

A nice matching set of 73/74 4X cylinder heads. Date code is H253 and H283. These are 4H with 98.94 cc’s. I’ve never seen these run. These were pulled from a 74 400 many years ago that I put aluminum heads on instead. The engine itself was complete and in good shape, if that helps any. These have been stored in my garage over 10yrs since that build. Local pick up in Williamsport, Pa. $175
Attached Thumbnails
Click image for larger version

Name:	image.jpg
Views:	167
Size:	84.5 KB
ID:	558974  

__________________
1972 GTO, Lucerne Blue, M22 Rockcrusher. 1974 Ram Air Formula 400,4spd,3.42 posi,honeycombs,much more.Rare Bird(sold). 2005 GTO Midnight Blue 6spd( sold).
  #2  
Old 01-21-2021, 03:31 PM
ramairformula74 ramairformula74 is offline
Senior Member
 
Join Date: Aug 2002
Location: williamsport,pa
Posts: 178
Default Head

Combustion chamber shot
Attached Thumbnails
Click image for larger version

Name:	image.jpg
Views:	253
Size:	90.2 KB
ID:	558975  

__________________
1972 GTO, Lucerne Blue, M22 Rockcrusher. 1974 Ram Air Formula 400,4spd,3.42 posi,honeycombs,much more.Rare Bird(sold). 2005 GTO Midnight Blue 6spd( sold).
  #3  
Old 02-27-2021, 09:45 AM
ramairformula74 ramairformula74 is offline
Senior Member
 
Join Date: Aug 2002
Location: williamsport,pa
Posts: 178
Default

Available

__________________
1972 GTO, Lucerne Blue, M22 Rockcrusher. 1974 Ram Air Formula 400,4spd,3.42 posi,honeycombs,much more.Rare Bird(sold). 2005 GTO Midnight Blue 6spd( sold).
  #4  
Old 03-23-2021, 12:52 PM
ramairformula74 ramairformula74 is offline
Senior Member
 
Join Date: Aug 2002
Location: williamsport,pa
Posts: 178
Default

Open to offers.

__________________
1972 GTO, Lucerne Blue, M22 Rockcrusher. 1974 Ram Air Formula 400,4spd,3.42 posi,honeycombs,much more.Rare Bird(sold). 2005 GTO Midnight Blue 6spd( sold).
  #5  
Old 03-14-2022, 02:20 AM
ramairformula74 ramairformula74 is offline
Senior Member
 
Join Date: Aug 2002
Location: williamsport,pa
Posts: 178
Default

Bump

__________________
1972 GTO, Lucerne Blue, M22 Rockcrusher. 1974 Ram Air Formula 400,4spd,3.42 posi,honeycombs,much more.Rare Bird(sold). 2005 GTO Midnight Blue 6spd( sold).
  #6  
Old 10-23-2022, 11:53 PM
ramairformula74 ramairformula74 is offline
Senior Member
 
Join Date: Aug 2002
Location: williamsport,pa
Posts: 178
Default

Available for

__________________
1972 GTO, Lucerne Blue, M22 Rockcrusher. 1974 Ram Air Formula 400,4spd,3.42 posi,honeycombs,much more.Rare Bird(sold). 2005 GTO Midnight Blue 6spd( sold).
  #7  
Old 12-06-2022, 11:26 AM
ramairformula74 ramairformula74 is offline
Senior Member
 
Join Date: Aug 2002
Location: williamsport,pa
Posts: 178
Default

Available

__________________
1972 GTO, Lucerne Blue, M22 Rockcrusher. 1974 Ram Air Formula 400,4spd,3.42 posi,honeycombs,much more.Rare Bird(sold). 2005 GTO Midnight Blue 6spd( sold).
  #8  
Old 12-08-2022, 04:25 PM
Formulabruce's Avatar
Formulabruce Formulabruce is offline
Ultimate Warrior
 
Join Date: Nov 2004
Location: North East of AMES PERFORMANCE, in the "SHIRE"
Posts: 9,363
Default

Noted these have Screw in studs.. a good thing..

__________________
"The Future Belongs to those who are STILL Willing to get their Hands Dirty" .. my Grandfather
The Following User Says Thank You to Formulabruce For This Useful Post:
  #9  
Old 12-08-2022, 05:37 PM
'ol Pinion head 'ol Pinion head is offline
Ultimate Warrior
 
Join Date: Apr 2000
Location: INJUN Territory, Red State Merica!
Posts: 9,567
Default

Quote:
Originally Posted by ramairformula74 View Post
Combustion chamber shot
2.11 intake valves.

there were three different secondary codes on the '73-74 4X -400 heads,
with the 400 2bbl version having the smaller 1.96" intake valves.

have gone through core supply's of Pontiac cyl heads before looking for 2.11-1.66 400 4X heads.. In every case, was looking for a certain date range pair to be rebuilt, & then go on a '73 or '74 TransAm's original 455 Dport shortblock.

GLWS

__________________
Buzzards gotta eat... same as worms.
  #10  
Old 02-15-2023, 05:29 PM
ramairformula74 ramairformula74 is offline
Senior Member
 
Join Date: Aug 2002
Location: williamsport,pa
Posts: 178
Default

Still for sale!

__________________
1972 GTO, Lucerne Blue, M22 Rockcrusher. 1974 Ram Air Formula 400,4spd,3.42 posi,honeycombs,much more.Rare Bird(sold). 2005 GTO Midnight Blue 6spd( sold).
  #11  
Old 02-13-2024, 10:05 AM
ramairformula74 ramairformula74 is offline
Senior Member
 
Join Date: Aug 2002
Location: williamsport,pa
Posts: 178
Default

Sold

__________________
1972 GTO, Lucerne Blue, M22 Rockcrusher. 1974 Ram Air Formula 400,4spd,3.42 posi,honeycombs,much more.Rare Bird(sold). 2005 GTO Midnight Blue 6spd( sold).
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 05:36 PM.

 

About Us

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.

 




Copyright © 2017