| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
11-20-2020, 09:01 AM
|
||||
|
||||
69' Firebird engine code question
I'm looking a 69' Firebird Convertible for sale that has a 350 engine with a XC engine code. My question is what heads and intake should be on this engine. It currently has casting number 48 heads, log style exhaust manifolds and a factory cast iron intake with a quadrajet. Could this be a 350 HO with that engine code?
__________________
62' Lemans, Nostalgia Super Stock, 541 CI, IA2 block, billet 4.5" crank, Ross, Wide port Edelbrocks, Gustram intake, 2 4150 style BLP carbs, 2.10 Turbo 400, 9" w/4:30 gears, 8.76 @153, 3100lbs |
|
#2
11-20-2020, 09:46 AM
|
|||
|
|||
|
So unless i'm off here... which happens... XC is probably a 1978 350. That would have ad 6X or 6S heads. 48 heads are nice on a 350. You are correct that they were HO heads but for a 69'. So my guess is that you do have a "350HO" but not an original one. Of course you don't know what has been done to the heads or what cam you are running? Nice set up on a 350 and very common to see those smog era 350s set up with older heads and a 4bbl.
|
|
#3
11-20-2020, 10:20 AM
|
||||
|
||||
|
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
|
#4
11-20-2020, 01:20 PM
|
|||
|
|||
|
Quote:
|
|
#5
11-20-2020, 05:46 PM
|
||||
|
||||
|
Quote:
__________________
62' Lemans, Nostalgia Super Stock, 541 CI, IA2 block, billet 4.5" crank, Ross, Wide port Edelbrocks, Gustram intake, 2 4150 style BLP carbs, 2.10 Turbo 400, 9" w/4:30 gears, 8.76 @153, 3100lbs |
|
#6
11-20-2020, 08:15 PM
|
|||
|
|||
|
The XC didn't have long branch manifolds in 69.
|
| 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
