If you’re lucky enough to own the famous Weiand 4×2 WC4D Small Block Chevy intake, or the Edelbrock CD-694 for early Cadillac engines, we’ve just launched the product you need – an easy-to-fit throttle shaft extension kit with ‘trim-to-fit’ support bracket.
If you’re not familiar with these intakes, they’re very narrow spaced 4×2 intakes where the carbs are so close together they can only be linked on one side – so you need long shafts for the right-side carbs. Most of the available blower plates are the same, as there’s very little room on top of a GMC-style supercharger.
Our new kit (Part number 9139K) starts with a high-grade stainless steel throttle shaft extension, with a larger diameter section extending as far up the shaft as possible to resist twist in operation. For improved looks, it covers the 97 throttle shaft bush. And for maximum security and alignment, it’s fixed with a 3/32” roll pin (supplied) through the hand throttle mounting hole, standard on the end of every 97 throttle shaft. It’s long enough for up to 3-3/4” carb offset across the engine.
The stainless steel ‘trim-to-fit’ support bracket, with its PTFE-lined bush for smooth operation, accommodates up to 4-1/8” in-line offset between the two banks of carburetors – enough for all ‘known’ applications.
Naturally, the kit works perfectly with all our other linkage parts so you can complete your linkage easily. Most of these intakes would use a simple direct linkage so you can just add four (or six) 9091K Superlink arms and join the swivels together with a length of 3/16″ stainless rod. You can pull it from your pedal with either a solid link to one of the stock carburetor throttle end brackets or use a cable with our 9136K Cable Throttle bracket.
To view this kit on our website, click this link to visit our website parts shop and then click on ‘Linkage’. Full and detailed installation instructions are available via the Stromberg Tech Center at www.stromberg-97.com .
I have 2 Stromberg BXOV-2 carbs going on a Fenton intake. My 1935 Chevy 207 stovebolt 6 has the factory original throttle linkage that comes up vertically through the manifold from underneath behind the carbs next to the block. (Thats a mouth full!).
What linkage do you offer?
Hi Joe, We did a 2×97 conversion here at our R&D shop recently on a slightly later Chevy 6 using a cool Tony Baron intake, but I have to say that the vertical throttle linkage beat us too – even more so as this car was a factory right hand drive conversion. We changed the whole pedal assembly for a cable and it worked great. I will email you a picture of how we linked the carbs. Best regards, Clive