1950-59 Chevy Inline 6 Dual Carburetor Kit

Loïc Jr, [11/27/2023 12:46 PM] 462. 1950-59 Chevy Inline 6 Dual Carburetor Kit $1.000

Intake Manifold

Offenhauser Dual Carb intake manifolds provide a nostalgic appearance while equalizing fuel distribution to all cylinders, improving both performance and economy. With this lightweight cast aluminum manifold, your old “Stovebolt” will be more responsive across the RPM range. Use with two “big base” carburetors (2-15/16″ bolt centers) typical of 1954-62 Chevys.

Fits 216-235-261 Chevy 6-cylinders
1950-1959 engines w/ PowerGlide
1953-1959 engines w/ Manual Transmission
Included linkage kit is “non-progressive,” meaning both carbs operate at the same time.

Carburetors

Speedway Motors now offers a reproduction version of one of the most popular carburetors ever used, the original Stromberg 97! Original equipment on 30s and 40s cars and trucks, the Stromberg 97 has long been favored by flathead hot rodders and racers who realized the performance qualities of this timeless fuel supplier.

There have been numerous attempts to reproduce this unit, with little success. “Speedy” Bill Smith of Speedway Motors in Lincoln, Nebraska, took on the challenge to make a great product even better. The 9 Super 7® Carb brings this reproduction of the original Stromberg 97 2 barrel carb into the 21st Century!

Speedway Motors has incorporated all of the improvements shown above while maintaining the carburetors original look. Features such as the choke assembly, accelerator pump, main jets and cosmetics have all been faithfully retained. Additionally, each carburetor is individually flow tested and inspected for leaks. Perfection is the result!

Aesthetically, the 9 Super 7® is nearly identical to the stock unit, minus the large 97 logo that appeared on the side and the patent numbers found on the float bowl area. Upgraded internal parts include; the float, needle, and seat. Jetting and power valve settings remain as they were for the original 97 carbs as well as the cfm and vacuum specs.

The other similarity that the 9 Super 7® shares with the original 97 is the setup and tuning necessary to yield a well-running machine. While perhaps not as simple as bolting on a single four-barrel, the 9 Super 7® makes setting up a multiple carburetor induction system easier than when Strombergs were available new. All thats required is an intake, a linkage system, a Uni-Syn syncing tool, and a little patience. Be sure to include the Secondary 9 Super 7® when installing multi-carb setups. Our 3 Carb kits come with one primary carburetor and two secondary carburetors while the 2 Carb kits are both primary carbs. See our Multiple Carburetor Tech Tip for more information on using the 9 Super 7® in a 2×2 or 3×2 carb set-up.

On the primary 9 Super 7® carb the throttle shaft extends from carb body .983″ and has the hole on the end to pin the linkage. There is a brass sleeve that the throttle shaft rotates in that extends from the carb body .400 and this leaves the useable throttle shaft length of .583. There is sufficient room for progressive linkage and the manual throttle linkage that rotates over the sleeve.

Loïc Jr, [11/27/2023 12:46 PM] All-new tooling for crisp, flawless castings
New aluminum base assembly allows for cooler fuel temps and better fuel efficiency as compared to the original cast iron design
Stainless steel screws and hardware
Choke assembly, accelerator pump, and jets have all been faithfully retained and accept standard Stromberg parts
Features original Stromberg 0.97″ venturi diameter
Modern Nitrophyl float and Neoprene gaskets
Original troublesome needle and seat replaced by a Grose-style fuel inlet valve to better cope with higher fuel pressures and improved high speed running
Will not stick or dribble like the old Viton-tipped needle and seat setups
Grose-style jet valve wont corrode in modern fuel, something the original needle and seat units cant do
Comes with a No. 65 power valve and 0.045″ main jets, identical to the stock 97
Extended brass throttle shaft to simplify multi-carb linkage
Perfect for use with our dual carb intake manifolds for Ford Flatheads
Note: Not recommended for use with Ethanol fuels.

Recipient of the NSRA 2009 Best New Product Award
Recipient of the Goodguys Best New Product Award – Engine and Transmission, Goodguys PPG Nationals 2009

Adapters

You’ve asked for it and here it is. No more scouring the junkyards to round out the new 2 or 3-carb setup on your Chevy 6.

GM L6 ‘big pattern’ carb flange to 3-bolt, 2-barrel carburetor
Cast Aluminum
GM 1963-1975
Precision Machined
2-Barrel, 3-Bolt Flange for 3-bolt, 2-barrel carburetor application
1 barrel bore measures 1.556″ with the ‘big pattern’ 2.94″ (2-15/16″) center to center bolt spacing
Kit Includes

(1) Offenhauser 1035 1950-1959 Chevy 6-Cylinder Dual Carb Intake Manifold

(1) Pair of Primary 9 Super 7® 3-Bolt 2-Barrel Carbs, Plain Finish

(1) GM ’63-75 L6 2-Bolt to Stromberg 3-Bolt Two Carb Adapter Kit