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Rochester Tri-Power Base Kit with Linkage

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What's in the Box

There's nothing cooler than a TriPower on your small block, but man are the carbs expensive and hard to find! With this kit you can use three junkyard 2G small base style Rochester carbs and put together a three deuce set-up for a fraction of the cost.  Includes two rebuilt bases for the secondary carbs, gaskets, jets, power valve and modified piston, idle tubes, plugs, hardware and new primary throttle shaft and butterflies. This kit includes an adjustable progressive linkage kit.

910-11569 Instructions (PDF)

Rochester Tri-Power Base Installation Instructions (PDF) 

Specs

Small Base 2 barrel carb:

  • Small bore 2GC
  • Bases are small pattern 1-7/16" throttle bores
  • Mount stud pattern is 1-7/8" x 3-1/4"

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Rochester 2G Tri-Power Base Kit Without Linkage
                        

There's nothing cooler than a TriPower on your small block, but  the carbs are expensive and hard to find! With this kit you can use three junk yard 2G small base style Rochester carbs and put together a three deuce set-up for a fraction of the cost.

Includes two new bases for the secondary front and rear carbs, gaskets, jets, power valve and modified piston, idle tubes, plugs, hardware and new primary throttle shaft and butterflies. The center carb (primary) uses its stock base, and parts are included in the kit to modify your stock primary base.

This kit doesn't include an adjustable progressive linkage kit, but the linkage is available separately. 

Rochester 2 GC Tri-Power Carb Installation Instructions (PDF)

Rochester 2G Extended Primary Carb Shaft
                        

Extended throttle shaft for Rochester 2G or 2GC carbs. For use in primary carbs in tri-power three deuce setups with progressive linkage. Fits "small base" Rochester 2 barrel carburetors w/ 1.6" throttle bore centers used on 1950's thru approximately 1968 GM cars.

Use with factory throttle plates or aftermarket plates.

  • Shaft Groove:  .039"
  • Factory throttle arm end to 1st butterfly screw hole center:  1.725"
  • Butterfly Screw Hole Centers:  11/16"  (.685")
Rochester 2G Extended Secondary Carb Shaft
                        

Extended throttle shaft for Rochester 2G carbs. This shaft is for a secondary carb in a tri-power three deuce setup with progressive linkage. Fits small base 2G and 2GC carbs from the mid '50s through approximately 1968 with throttle bore centers of 1.6".

  • Brass construction
  • 6-7/8" shaft  (6.695")
  • 5/16" diameter  (.312")
  • 6-32 x 1/4" socket head screw at the end
  • 1.645" distance from factory linkage end to 1st butterfly screw hole center
  • 11/16" butterfly screw hole centers  (.685")
Rochester 2G Primary Carb Throttle Plate
                        

For use on the primary (center) carb in a Tri Power setup. Fits small base Rochester 2G and 2GC carbs from the mid '50s through approximately 1968 with throttle bore centers of 1.6".

Two throttle plates required per carburetor. Screws NOT included (sold separately with extended throttle shafts). 

Rochester 2G Secondary Carb Throttle Plate
                        

For use on the secondary carbs in a tri-power three deuce setup. Fits small base Rochester 2G and 2GC carbs from the mid '50s through approximately 1968 with throttle bore centers of 1.6".

Two throttle plates required per carburetor. Screws NOT included (sold separately with extended throttle shafts). 

Edelbrock 5419 1955-86 Small Block Chevy Three Deuce Intake Manifold
                        

Designed for 1955-86 262-400 c.i.d. small-block Chevys, this 3x2 style manifold has a balanced 180° firing order port runner arrangement. It contains an exhaust gas heat riser and offers excellent performance potential. This tri power manifold has a machined front oil filler tube pad with boss. Carb center-to-center: 5-1/2". Idle to 5500 rpm power band.

325-5419 Instructions (PDF)

Offenhauser 1955-1986 Small Block Chevy Three Deuce Intake Manifold
                        

Offenhauser 3x2 tri-power manifold for 265-400 Small Block Chevy. Carb mount stud pattern is 1-7/8" x 3-1/4" (small base Rochester).

  • Bosses for mounting an air conditioner compressor bracket
  • Hole in front to accepts an oil fill tube
  • HEI distributor will not fit
Three 4-bolt Small Rochester 2-BBL Carbs to 4-BBL Intake Adapter
                        What we have here is an adapter that allows you to put three two barrel carbs on a four barrel intake. Accepts three small base Rochester four bolt 2-barrel carburetors.  
                    
OTB Gear 4032 Rochester 2-G Bug Horn Air Filter Housing, Polished
                        A practical embellishment for the top of your the  Rochester 2-G (2-5/8" dia.) carb. Precision machined of premium aluminum  alloy to fit solidly - secured with a stainless set screw. Each comes  with our all stainless mesh Bug Dome to keep the big stuff out of your  carb. Critters, small stones, loose screws, etc., are not healthy  additives for your engine. The Bug Horn stands only 2" tall, for low  hood clearance considerations. Available in a polished  satin finish.
  • Polished satin finish
  • Fits Stromberg, Holley, Ford, and Rochester 2 barrel carbs
  • Stainless bug dome included
  • Secured with a stainless set screw
  • 2" Tall
  • Also available to fit Stromberg, Holley, Ford, and Rochester 2 barrel carbs
  • We include a 1/4-20 mounting screw
OTB Gear 4033 Rochester 2-G Bug Horn Air Filter Housing, Unpolished
                        A practical embellishment for the top of your the  Rochester 2-G (2-5/8" dia.) carb. Precision machined of premium aluminum  alloy to fit solidly - secured with a stainless set screw. Each comes  with our all stainless mesh Bug Dome to keep the big stuff out of your  carb. Critters, small stones, loose screws, etc., are not healthy  additives for your engine. The Bug Horn stands only 2" tall, for low  hood clearance considerations. Available in an unpolished  satin finish.
  • Unpolished satin finish
  • Fits Stromberg, Holley, Ford, and Rochester 2 barrel carbs
  • Stainless bug dome included
  • Secured with a stainless set screw
  • 2" Tall
  • Also available to fit Stromberg, Holley, Ford, and Rochester 2 barrel carbs
  • We include a 1/4-20 mounting screw
OTB Gear 4220 Rochester 2-G Full Finned Air Cleaner, Polished
                        Classical finned design, accentuated by "doming" the top for more definition. Fits 2-5/8" Diameter carburetors. Featuring our exclusive new Platinum Series filter in the low profile 2" height. The filter media is a medium gray, washable oiled cloth. This is the filter that "sparkles" in the sunlight. The fittings are cast from premium aircraft grade aluminum, which takes a higher than normal shine. All visible surfaces are polished - others may only polish the raised areas. The base casting is precision bored, with an internal shoulder to snugly fit your carburetor - not simply "cast to fit" as others may do. Our internal shoulder also keeps the cleaner from rocking around. Compare our features, we come out shining.

Fits type 94,97, and 98 carbs, securing with a stainless socket set screw.
  • Washable Filter Media
  • Polished
  • Fits type Rochester 2G carbs
  • Secures with 1/4"-20 hardware
OTB Gear 4240 Rochester 2-G Dome Air Cleaner, Polished
                        Great retro design - reminiscent of baby hub caps.  Fits 2-5/8" diameter carburetors. Featuring our exclusive new Platinum  Series filter in the low profile 2" height. This filter media is a medium gray, washable oiled cloth. This is the  filter that "sparkles" in the sunlight. The fittings are cast from  premium aircraft grade aluminum, which takes a higher than normal shine.  All visible surfaces are polished - others may only polish the raised  areas. The base casting is precision bored, with an internal shoulder to  snugly fit your carburetor - not simply "cast to fit" as others may do.  Our internal shoulder also keeps the cleaner from rocking around.  Compare our features, we come out shining.
  • Washable Filter Media
  • Polished
  • Fits type Rochester 2G carbs
  • Secures with 1/4"-20 hardware
OTB Gear 4250 Rochester 2-G Aero Series Air Cleaner, Polished
                        Our bold new Aero series air cleaner is inspired by a great design from the '40's - the radiator cap of the Ford farming tractor. On a multiple carb setup, these babies overlap each other in a way that screams motion, even when parked. Some vintage designs are just too good not to revisit. Fits 2-5/8" diameter carburetors. Featuring our exclusive new Platinum Series filter in the low profile 2" height. The filter media is a medium gray, washable oiled cloth. This is the filter that "sparkles" in the sunlight. The fittings are cast from premium A-356 aircraft grade aluminum, which takes a higher than normal shine. All visible surfaces are polished - others may only polish the raised areas. The base casting is precision bored, with an internal shoulder to snugly fit your carburetor - not simply "cast to fit" as others may do. Our internal shoulder also keeps the cleaner from rocking around. Compare our features, we come out shining.
  • Washable Filter Media
  • Polished
  • Fits type Rochester 2G carbs
  • Secures with 1/4"-20 hardware
OTB Gear 4270 Rochester 2-G Mohawk Air Cleaner, Polished
                        Now, a downscale match to our popular Mohawk 4 barrel air cleaner - and the Rocket Strip valve covers. Cast from A-356 aircraft grade alloy and finished to show standards. Each comes with our 2"X4" Platinum Series filter for practicality and appearance. The filter media is a medium gray, washable oiled cloth. All visible surfaces are polished - others may only polish the raised areas. The base casting is precision bored, with an internal shoulder to snugly fit your carburetor - not simply "cast to fit" as others may do. Our internal shoulder also keeps the cleaner from rocking around. Compare our features, we come out shining.
  • Washable Filter Media
  • Polished
  • Fits type Rochester 2G carbs
  • Secures with 1/4"-20 hardware
Lokar TRP-4003 Tri-Power Throttle Cable Bracket and Springs, Stainless
                        

Designed for Rochester Tri-Power. Kit includes stainless steel throttle cable bracket and stainless steel springs. Stainless bracket mounts under rear carburetor on Rochester 3-2 set-up. Cables operate from center carburetor. Stainless bracket and dual stainless springs are used to mount Lokar's throttle cable and kickdown assemblies.

  • For Rochester Tri-Power
  • Includes stainless steel throttle cable bracket and stainless steel springs
  • Mounts under rear carburetor on Rochester 3-2 set-up
  • Cables operate from center carburetor