inc. GST


BRAND: Stromberg

Progressive Back-Bar Carburettor Linkage Kit
Suit 6 X 2 Edelbrock Stromberg Carburettors

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This Back-bar kit fits the Edelbrock X1 ram 6x2 intake - Use with two Stromberg 9251PRO 3x2 TwoStep Progressive Linkage kits to build a full 6x2 progressive linkage.

Designed and manufactured exclusively by Stromberg carburettor, our Back-Bar kits change the game for quality, efficiency and looks. With so many different multi-carb intakes and applications available, Stromberg 6x2 progressive linkages are modular, allowing you to select you 3x2 Progressive Linkage and Back-bar kits separately to suit your individual intake manifold dimensions.

You'll find comprehensive information on choosing and installing the right kits for your multi-carb intake at the Stromberg online Tech Center. Each kit comes pre-assembled and installs in simple steps, without the need for extended throttle shafts. Every Stromberg TwoStep linkage kit comes with full instructions, of course.

This Back-bar Kit is supplied 'ready-to-fit' the Edelbrock X1 ram 6x2 intake.
Carb spacing on each bank : 4-7/8 inches
Distance between the two banks: 9-1/8 inches
Offset - how far one bank is in front of the other: zero.

IMPORTANT NOTE: Our pictures show the full 6x2 linkage when assembled. carburettors and manifold not included. This kit comprises only the following:


  • Back-bar linkage ONLY - use with two 9251PRO 3x2 Progressive kits for full 6x2 linkage
  • CAD optimised function plus great looks
  • Unique low-line brackets support the shaft at four points for zero flex and positive operation
  • Clamped and pinned levers ensure positive grip on the Back-bar, with '3-position' adjustment for leverage and throttle response
  • Die-cast zinc SuperLink lever arms. All other parts stainless steel
  • Stainless end stops prevent lateral movement
  • Cool satin finish. Chrome available to special order
  • Supplied pre-assembled. With instructions!
  • 2 stainless steel Back-bar brackets with rolled ends, Oilite self-lubricating bushes and two small washers to take up any height difference in the base castings.
  • Stainless steel Back-bar shaft.
  • Two long levers, with swivels and clamping screws. Both levers are pinned to the shaft.
  • Two stainless steel end stops to prevent lateral movement in the Back-bar shaft.
  • Two stainless steel rods with swivels - the links between the Back-bar levers and the primary carburettors.

Designed for maximum versatility in operation, our 6x2 kits can be configured in a number of different ways. The long back-bar levers have three top mounting points for flexible throttle response and leverage. And the progressive links can be adjusted to run the engine using just two, four or all six carburettors. For more information, check out our 6x2 Tuning Tips at the Stromberg Tech Center.

Stromberg recommends a mechanical pedal link for all multi-carb systems. Your 6x2 Back-bar can be connected to the pedal via one of the two long levers supplied, or you can add a further long lever with Stromberg kit 9096K (Long linkage arm/swivel) which can be positioned anywhere along the Back-bar shaft to align with your throttle pedal 'pull' point. Complete with swivel, clamping screw and 3/32 inch roll pin, the extra lever can also be drilled and pinned to the Back-bar to ensure positive location.

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