Home | History | F.A.Q. | Orders | Contact Us

Carburetors | Repair Kits | Other Parts | Literature | Tools

Passenger | Truck | Tractor | Industrial | Marine

 

Pontiac tripower specifications

 

I have been reluctant to publish much of the information contained herein as the information can be misunderstood, but feel it is now time to publish the information.

 

Carburetor casting numbers - It is IMPOSSIBLE to positively identify a Rochester carburetor from the casting numbers alone (this fact can easily be proved by the reader in examining the data presented, as many different carburetors will have the same casting numbers). The casting numbers refer to a blank casting prior to machining. Castings can be machined a number of different ways, creating completely different parts (but still having the same casting number). However, one can identify what a carburetor is not by looking at the casting numbers. As reproduction tags have been on the market for a number of years, many tripower carburetors are mistagged (either in error, or a deliberate attempt to deceive). If the casting numbers of the carburetor does not match the information contained herein for the given tag number; then the carburetor is mistagged.

 

Manifold casting numbers – Several of the different years of Pontiac tripower manifolds came from the factory with no casting number. Others have had the casting number removed by individuals either wishing to “dress up” the engine, or in an attempt to deceive. Generally, a casting date is located on the underside of the manifold, so manifolds can still be identified. Also, many attempt to sell the Oldmobile J-2 intake as a Pontiac. The casting number for the J-2 is 571145. Even with the number removed, it should be quite obvious that this is NOT a Pontiac manifold; as the water neck bolt to the top of the intake at about a 20 degree angle. All Pontiac tripower water necks bolt to the front on the manifold, never to the top.

 

Vacuum motors – The last three digits of the part number are stamped in the arm of the vacuum motor.

 

1957,   1958,   1959,   1960,   1960 SD,   1961,   1961 SD,   1962,   1963,   1964,   1965,   1966

 

1957

 

Manifold 528533

Vacuum motor 1998829 (mounted on rear carburetor)

Vacuum motor bracket 7011427

Vacuum control switch 7011310 (mounted on center carburetor)

Vacuum motor link 7011428

Front to rear carburetor link 7011009

Front carburetor (A/T, S/T) 7011351 (airhorn casting 7011293, bowl casting 7009094, throttle body casting 1869)

Center carburetor (A/T) 7011350 (airhorn casting 7008594, bowl casting 7009094, throttle body casting 1869)

Center carburetor (S/T) 7011500 (airhorn casting 7008594, bowl casting 7009094, throttle body casting 1869)

Rear carburetor (A/T, S/T) 7011352 (airhorn casting 7010962, bowl casting 7009094, throttle body casting 1869)

Fuel lines steel

 

1958

 

Manifold 529371

Vacuum motor 1998827 (mounted on front carburetor)

Vacuum motor bracket 7011280

Vacuum control switch 7011310 (mounted on center carburetor)

Vacuum motor link 7012720

Front to rear carburetor link 1011009

Front carburetor (A/T, S/T) 7011705 (airhorn casting 7011293, bowl casting 7009094, throttle body casting 2023)

Center carburetor (A/T) 7011706 (airhorn casting 7008594, bowl casting 7009094, throttle body casting 2023)

Center carburetor (S/T) 7011709 (airhorn casting 7008594, bowl casting 7009094, throttle body casting 2023)

Rear carburetor (A/T, S/T) 7011707 (airhorn casting 7010962, bowl casting 7009094, throttle body casting 2023)

Fuel lines steel

 

There was also a set of 3 OTC (over the counter) carbs sold for racing. These are 7012351 (front), 7012352 (center), and 7012353 (rear). These differed from the production carburetors in that they were set up for mechanical linkage (also OTC), and had richer jetting.

 

1959

 

Manifold 532422

Vacuum motor 1998857 (mounted on front carburetor)

Vacuum motor bracket 7013284

Vacuum control switch 7013670 (mounted on center carburetor)

Vacuum motor link 7013285

Front to rear carburetor link 7013278

Front carburetor (A/T, S/T) 7013063 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Center carburetor (A/T) 7013064 (airhorn casting 7012710, bowl casting 7009094)

Center carburetor (S/T) 7013067 (airhorn casting, bowl casting 7016085)

Rear carburetor (A/T, S/T) 7013065 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Fuel lines steel

 

1960

 

Manifold 536194

Vacuum motor 1998857 (mounted on front carburetor)

Vacuum motor bracket 7013284

Vacuum control switch 7013670 (mounted on center carburetor)

Vacuum motor link 7013285

Front to rear carburetor link 7015362

Front carburetor (A/T, S/T) 7013063 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Center carburetor (A/T early) 7015066 (airhorn casting 7012710, bowl casting 7009094)

Center carburetor (A/T late) 7015076 (airhorn casting 7012710, bowl casting 7013679, throttle body casting 3530)

Center carburetor (S/T) 7015068 (airhorn casting 7012710, bowl casting 7016085, throttle body casting 3530)

Rear carburetor (A/T, S/T) 7013065 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Fuel lines steel

 

1960 Super Duty

 

This unit sold OTC with a mechanical linkage kit, a jetting kit, and aluminum fuel lines. It is unknown to the author why Pontiac issued a separate casting for the Super Duty program, as side-by-side inspection of the two manifolds reveals no noticable differences.

 

Manifold 535552

Front carburetor (S/T) 7013063 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Center carburetor (S/T) 7015068 (airhorn casting 7012710, bowl casting 7016085, throttle body casting 3530)

Rear carburetor (S/T) 7013065 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Fuel lines aluminum

 

1961

 

Manifold 538202

Vacuum motor 1998857 (mounted on front carburetor)

Vacuum motor bracket 7013284

Vacuum control switch 7013670 (mounted on center carburetor)

Vacuum motor link 7013285

Front to rear carburetor link 7015362

Front carburetor (A/T, S/T) 7013063 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Center carburetor (4-speed A/T) 7019067 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor (3-speed A/T) 7019069 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor (S/T) 7019064 (airhorn casting 7017917, bowl casting 7019927, throttle body casting 3530)

Rear carburetor (A/T, S/T) 7013065 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Fuel lines aluminum

 

1961 Super Duty

 

This unit sold OTC with a mechanical linkage kit, a jetting kit, and aluminum fuel lines.

 

Manifold 541510 (aluminum)

Front carburetor (S/T) 7013063 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Center carburetor (S/T) 7019064 (airhorn casting 7017917, bowl casting 7019927, throttle body casting 3530)

Rear carburetor (S/T) 7013065 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Fuel lines aluminum

 

1962

 

Manifold 541690

Vacuum motor 1998857 (mounted on front carburetor)

Vacuum motor bracket 7013284

Vacuum control switch 7013670 (mounted on center carburetor)

Vacuum motor link 7013285

Front to rear carburetor link 7015362

Front carburetor (A/T, S/T) 7013063 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Center carburetor (4-speed A/T) 7020067 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor (3-speed A/T) 7020069 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor (S/T) 7020064 (airhorn casting 7017917, bowl casting 7019927, throttle body casting 3530)

Rear carburetor (A/T, S/T) 7013065 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Fuel lines aluminum

 

1963

 

Manifold 9770275

Vacuum motor 1998857 (mounted on front carburetor)

Vacuum motor bracket 7013284

Vacuum control switch 7013670 (mounted on center carburetor)

Vacuum motor link 7013285

Front to rear carburetor link 7015362

 

Front carburetor (A/T, S/T - 389) 7013063 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Center carburetor (4-speed A/T – 389) 7023077 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor (3-speed A/T – 389) 7023073 (airhorn casting 7017917, bowl casting 7011929, throttle body casting 3530)

Center carburetor (S/T – 389) 7023075 (airhorn casting 7017917, bowl casting 7019927, throttle body casting 3530)

Rear carburetor (A/T, S/T - 389) 7013065 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

 

Front carburetor (A/T, S/T – 421) 7023078 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

Center carburetor (A/T – 421) 7023162 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor (S/T – 421) 7023161 (airhorn casting 7017917, bowl casting 7019927, throttle body casting 3530)

Rear carburetor (A/T, S/T – 421) 7023079 (airhorn casting 7013206, bowl casting 7011997, throttle body casting 15211)

 

Fuel lines aluminum

 

1964

 

Manifold 9775088

Vacuum motor 1998857 (mounted on rear carburetor)

Vacuum control switch 7028797 (mounted on center carburetor)

Front to rear carburetor link 7015362

 

Front carburetor (A/T, S/T – 389) 7024178 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Center carburetor (A/T – 389) 7024173 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor  (S/T – 389) 7024175 (airhorn casting 7017917, bowl casting 7019927, throttle body casting 3530)

Rear carburetor (A/T, S/T – 389) 7024179 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

 

Front carburetor (A/T, S/T – 421) 7024078 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Center carburetor (A/T – 421) 7024074 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor) S/T – 421) 7024075 (airhorn casting 7017917, bowl casting 7019927, throttle body casting 3530)

Rear carburetor (A/T, S/T – 421) 7024079 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

 

Fuel lines aluminum

 

1965

 

Manifold 9778818 (this number often appears to be 9778815 due to a casting problem)

Vacuum motor 1998857 (mounted on rear carburetor)

Vacuum control switch – large car 7028797 (mounted on center carburetor)

Vacuum control switch – GTO 7029693 (mounted on center carburetor)

Front to rear carburetor link 7015362

 

 

Front carburetor (A/T – 389) 7024178 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Front carburetor (S/T – 389) 7025178 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Center carburetor (A/T – 389 large car) 7025173 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor (A/T – 389 GTO) 7024177 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor  (S/T – 389) 7025175 (airhorn casting 7017917, bowl casting 7019927, throttle body casting 3530)

Rear carburetor (A/T – 389) 7024179 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Rear carburetor (S/T – 389) 7025179 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

 

Front carburetor (A/T – 421) 7024078 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Front carburetor (S/T – 421) 7025078 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Center carburetor (A/T – 421) 7025074 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor (A/T – 421) 7025070 (airhorn casting 7017917, bowl casting 7019929, throttle body casting 3530)

Center carburetor  (S/T – 421) 7025075 (airhorn casting 7017917, bowl casting 7019927, throttle body casting 3530)

Rear carburetor (A/T – 421) 7024079 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Rear carburetor (S/T –421) 7025079 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

 

1966

 

Manifold 9782898 original cast iron (there is a reproduction of aluminum)

Vacuum motor (A/T) 1998857 (mounted on rear carburetor)

Vacuum control switch (A/T) – 7031598 (mounted on center carburetor)

Front to rear carburetor link 7015362

 

Front carburetor (A/T – 389) 7024178 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Front carburetor (S/T – 389) 7025178 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Center carburetor (A/T – 389) 7026074 (airhorn casting 7031587)

Center carburetor  (S/T – 389) 7026075 (airhorn casting 7031587, bowl casting 7031575, throttle body casting 31892)

Center carburetor (S/T – 389 A.I.R.) 7036175 (airhorn casting 7031587)

Rear carburetor (A/T – 389) 7024179 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Rear carburetor (S/T – 389) 7025179 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

 

Front carburetor (A/T – 421) 7024078 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Front carburetor (S/T – 421) 7025078 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Center carburetor (A/T – 421) 7026074 (airhorn casting 7031587)

Center carburetor  (S/T – 421) 7026075 (airhorn casting 7031587, bowl casting 7031575, throttle body casting 31892)

Rear carburetor (A/T – 421) 7024079 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

Rear carburetor (S/T –421) 7025079 (airhorn casting 7013206, bowl casting 7029683, throttle body casting 15211)

 

Fuel lines – mostly aluminum; however some from the Van Nuys plant were steel