[TRADERMIKE 2012]

Originally Posted by tom s

1967 Tripower?

An interesting topic that we went over years ago, the Tri-power was finished in 1966 and in 1967 came the Quadrajet.

However, During the 1966 Motor development for the 1967 models, how many Tripowers were installed on the 1967 upcoming models (400 ci and 428 ci) and are there any factory records of them?

Before the edict that band Tripowers on everything but the corvette and the Corvair?

My 1967 Pontiac 428 ci HO Motor does not include the Vin. number, just the EUN number, because early models did not come with the Vin numbers yet.

My vehicle has a 1967 Pontiac 428 ci HO with YK code, that is 4bbl, auto. In 1968 I have the date etched into the p.s. Head # 2288, I think going by memory, Feb.- 28-1968, when a Engine Mechanic installed the # 886 Tripower Cam and the 1966 Tripower Intake Manifold and Carbs. on to my Engine. I can now be assured that is when this Mechanic put the Pistons on Backwards except the # 2 Piston is installed forward. Now that the Heads were recently removed, I can see that only Factory work was done there.

It is known and I found out in my research that the Tripower Intake and Dual quad Carbs, # 886 Cam were sold over the counter to the public, but it was the racers that were knowledged of these special parts, from being in the groove, for lack of better words. This is why I believe that my Motor was raced, not only to run shine. Also, recently it has been proven that in those days the racers would purposefully reverse the pistons to gain an edge on the track. Some posts back I inserted the forum member that made us aware of this fact.

Get a hold of John Wallace for more Info., he helped out in the past.

And there is much more info. in my various Threads, if one wants to research this further.

[Tom Vaught]

Originally Posted by TRADERMIKE 2012

An interesting topic that we went over years ago, the Tri-power was finished in 1966 and in 1967 came the Quadrajet.

However, During the 1966 Motor development for the 1967 models, how many Tripowers were installed on the 1967 upcoming models (400 ci and 428 ci) and are there any factory records of them?

Since my Uncle had a Pontiac dealership (for 67 years) in this time frame, And I worked for him for a few years as a mechanic, Mr Forrest, our Chief Mechanic told me that GM never installed TRI-POWER parts on 1967 engines and The Development Phase of the Rochester 4 BBL Carb was several years earlier. Another BS story vs reality.

If you worked for an Auto Company in the 1960s you would know that the engine development time "start date"
for the components was YEARS ahead of the production year.

Tom V.

[TRADERMIKE 2012]

Originally Posted by Tom Vaught

Since my uncle had a Pontiac dealership (for 67 years) in this time frame, And I worked for him for a few years as a mechanic, Mr. Forrest, our Chief Mechanic told me that GM never installed TRI-POWER parts on 1967 engines and The Development Phase of the Rochester 4 BBL Carb was several years earlier. Another BS story vs reality.

If you worked for an Auto Company in the 1960s you would know that the engine development time "start date"
for the components were YEARS ahead of the production year.

Tom V.

Mikes reply:

THIS IS A QUESTION, "NOT" A BULL STORY, YOU CAN TELL BY THE QUESTION MARK AT THE END!

However, during the 1966 Motor development for the 1967 models, "how many Tripowers were installed on the 1967 upcoming models (400 ci and 428 ci) and are there any factory records of them?"

ALSO, IN MY READING, "IF YOU WERE LUCKY TO HAVE RECIEVED A 428 MOTOR, FROM THE FACTORY, IN A PONTIAC TRANS AM OR FIREBIRD OR GTO, YOU WOULD HAVE ONE RARE VEHICLE?", STATED IN SOMETHING THAT I READ, IN THE PAST, IF MY MEMORY SERVES ME.