Connecting a throttle cable kit to a Stromberg TwoStep linkage

Linkage 1We just uploaded a new article to the Stromberg Tech Center. ‘How do I connect a throttle cable to a Stromberg TwoStep Linkage?’ Cable throttle systems using our 9136K bracket kit make Stromberg 97 carburetor set-ups even easier to use. And this article explains how it all happens. To read it in full, click this link – Stromberg Tech Center, How do I connect a throttle cable kit to a Stromberg TwoStep linkage?

Our 9136K Cable Throttle Bracket is compatible with pretty much all Stromberg 97-based intake manifolds, though some Ford Flathead intakes need a remote fuel pump to work with cable throttle. It’s easy to install, of course, especially if you download our ‘How To: Install 9136K Cable Throttle Bracket’ instructions from the Stromberg Tech Center. Just remember to stick it under the rear carburetor on your intake. And note that on a 3×2 direct linkage, the bracket lifts the rear carburetor a little, so the front two carbs may need packing with extra gaskets (see our kit 69447K) for perfect linkage alignment. On a 2×2 direct or 3×2 progressive linkage, this is not a problem.

Aftermarket throttle cable kits should come with a fitting on the carburetor end of the cable which clips into a small threaded ball. To attach that ball to your Stromberg linkage, simply remove it from the cable end fitting. Remove the small black set-screw from one of the Stromberg linkage swivels. Screw the threaded ball into the swivel (clamping the linkage rod as with the set screw) and clip your throttle cable end back onto it. If you have a 2×2 linkage, fix the cable to the front carburetor. On a 3×2 system, fix it to the center carb, either into the swivel or (on the longer progressive lever) through the lower adjustment hole. Always check that the threaded ball clamps the linkage rod tight.Linkage 2

WARNING! Always double check that you have connected all of the linkages – throttle, choke, accelerator pump – and fuel lines correctly. Manually (and from inside the car), operate the throttle lever and choke mechanism to ensure free movement. Any sticking, binding, or ‘over-center’ movement in the linkage could result in uncontrolled engine speed, property damage, serious personal injury, or death. Always use a throttle return spring.

Stromberg 97 hand throttle

A few guys have emailed us asking about Stromberg 97 hand throttle parts and how to install them. We don’t supply the hand throttle parts on new Genuine Stromberg 97 carburetors simply because most of the carbs we supply go onto hot rods and the hand throttle is not required. Some guys use the parts off their own 97 when they update to a new model, of course, but if you don’t have the parts try Max Musgrove at 97 Express, who recons a lot of 97s and often has spare hand throttle kits. Email him at . If you have parts, here’s how to fit them.

Align the holes and...

Align the holes and…

The Stromberg hand throttle parts came on the 97, 48, 40, 81 and LZ models. There’s the main lever with the ball on the end, a small collar, a spring and a cotter pin. Note that at the bottom end of the main lever, on the outside edge, half of the circle is missing (you can just see it in the pic). This mates with the tab on the inside edge of the small collar piece. The tab is smaller than the ‘half of the circle’ that is missing on the lever for a reason.

To install it, you push the lever onto the throttle shaft (obviously the other end to the foot pedal throttle bracket). Make sure that the ball is pointing outwards. It should slide right over the throttle shaft bush. If you have a brand new 97, we paint that bush. So you may need to scratch the paint off first. Make sure the lever spins freely on the bush. Then push the spring over the end of the throttle shaft. It goes inside the lever a little at the bottom.

...insert the pin

…insert the pin

Now push the small round collar onto the end of the throttle shaft (compressing the spring) so that the tab on that collar fits into the gap (the ‘half a circle’) in the bottom end of the lever. Align the holes in the end of the throttle shaft and the collar and insert the pin. Make sure you get the holes in the correct alignment. You want the lever pointing to about 10pm when you put the pin in vertically. If you do this you will notice that when you pull on the pedal lever, the hand lever does not move because the collar tab rotates in the ‘half a circle’ gap in the lever (mentioned above). Without this, the hand throttle knob would move in and out of the dashboard as you drive. It may need a little adjustment to ensure that the hand throttle knob does not move in normal driving. One more thing. It’s a good idea to support the end of the throttle shaft with a block of wood when driving the new pin, to prevent tweaking it. And if you do use the hand throttle, push it back in to dashboard (the off position) before using the pedal. It’s not like a modern cruise control where the pedals (throttle or brake) automatically overide the hand throttle!  Any questions? Email us at


Update – 16 Sept 2015.

Max Musgrove sent us some pics of the clever jig they built to support the 97 throttle shaft to fit the hand throttle parts. Thought we’d share them with you.


More chrome Stromberg linkages

DSC_9525Need a chrome 3×2 linkage with kickdown facility for your small block Chevy or Ford? Your early overhead valve engines, like Ford Y-block and ’49-’61 Cadillac? Or your 6×2 Edelbrock X1 Ram intake? Step right up, sir. We have just what you need. We added three new chrome Stromberg linkages to our range today. Here’s how they shake out:

9246PRO-KD-CHR 3×2    5-1/2 inch carb spacing. Fits small block Chevy – Offenhauser 3558 and Edelbrock 5414 & 5418 3×2 intakes.

9251PRO-KD-CHR 3×2   4-7/8 inch carb spacing. Fits Offenhauser 3×2 intakes for early overhead valve engines, like Ford Y-block and ’49-’61 Cadillac, (but check carb spacing before ordering). Also used with our 9261-BB Back-bar kit for 6×2 Edelbrock X1 Ram intake.

9253PRO-KD-CHR 3×2   4-3/4 inch carb spacing. Fits Edelbrock 5412 3×2 intake for small block Ford. Fits some Weiand 3×2 intakes for early overhead valve engines (but check carburetor spacing before ordering). Also used with our 9262-BB Back-bar kit for 6×2 Offenhauser Pacesetter 3924 intake.

All three are high quality CHROME 3×2 progressive carburetor linkages with auto-trans kickdown capability – an extended center lever with a 1⁄4”UNF thread to accept the special fixing common to most (eg ‘Lokar®’) hot rod auto-trans kickdown cable kits. Stromberg KD linkages are designed to work with the Stromberg Cable Throttle Bracket (9136K), which provides a fixing hole for the small cable mount extension bracket supplied with most hot rod kickdown cable kits.

To find out more, you’ll find all three kits on the Stromberg website. Click here.




3×2 Progressive linkage update

DSC_9188I’m not sure if it’s a blessing or a curse. We develop something cool, everybody likes it and, hey, people even buy ’em! But here at Stromberg, that’s never quite enough. We’re always looking to make things better, even in a small way. And here’s a perfect example.

We’ve made a small running change to all our 3×2 progressive linkages. The regular PRO kits, the PRO-KD kits with kick-down hook-up facility, and the chrome versions of both. You’d barely notice it, but it’s something we’ve been looking at for a while and it bugged us enough to make a change. Basically, the swivel for the lever with the sliding link through it used to have a small set screw in the center so you could lock it off if you wanted. We thought it might make it more versatile, but experience proved us wrong. More often the screw went AWOL. So we’ve deleted it so the swivels match at both end carburetors and the whole system gets a smoother look. OK, that’s all. A small change, but one for the better.

AMBR Stromberg equipped !

GMBR 2We got the May 2013 issue of Hot Rod NZ magazine today. To be honest, it’s one of our favourite magazines and for many reasons. First, the NZ scene seems so full of life – new imports coming in all the time, plenty of events, you know what we mean. And second, the magazine puts the reader first instead of the advertiser (the US mags have a lot to learn in this respect) and covers that scene in such depth with real support for the hobby – both home and abroad.

Here’s a perfect example. We’ve been following the coverage of John Mumford’s AMBR winning ‘Kelly Brown’ 1927 T roadster ever since the award back in January. But HRNZ has some of the best pictures we’ve ever seen of its Ardun-equipped V8-60 engine. We’re particularly stoked because we always suspected it was Stromberg equipped, but I’d never seen a good enough (close enough) picture to confirm that they were new 97s. Until now. So thanks hugely to HRNZ, Greg Stokes and photographer Alain Sauquet. And thanks to John Mumford and Roy Brizio and his crew for recognising that so many Stromberg linkage and fuel delivery parts are worthy of America’s Most Beautiful Roadster!

PS. Did you get the pun , Greg?  ;>)