SB Kick down linkage

The 340 in my 70 duster will soon be having an Edelbrock performer manifold with a 1" spacer atop. The kickdown linkage rod will be too short. Will the rod from a big block be longer and shaped well enough to work?

first I will ask you why you would use the performer over the stock intake. About the only advantage you will get is it is lighter. From what I have seen the performance won't be much better. You will have to lengthen (splice in) the rod from the carb to the belcrank and rebend to get the right angle for your spacing to get the proper adjustment. Remember to use the light spring to pull it into constant contact with the carb. pin.

Ditto on the mods to the rods /likange,D.

The hardware stores carry a hollow nut about 2" long that screws on the existing linkage then you buy a piece of all- thread the right size and cut to fit and install the sloted piece of linkage that attaches to the carb on the end of the all-thread. The nut will give some adjustability for finite tweeks.

Why the performer intake? Well, I believed the ad in the mopar car mags back 8 years ago or so when Edelbrock was showing significant increases in hp and torque when the performer intake and carb were teamed together. As to whether it helped, that's anybody's guess. Bouchillon makes a kickdown linkage system, but it's megabucks and I'm hoping to find a cheaper way. Thanks for the tips. I may just weld a 2" piece of rod steel in the middle. I was even thinking of cutting the rod in half, then slipping a hollow steel rod over the break, adjusting it to the correct length, then crimping it. That way I could always restore it to its original length. I was just hoping that perchance the BB rod was sufficient. Guess it's not.

This is what I used on my 360 van. It cost $2.45 and 20 minutes work.

YOu gotta realize most car ads, even in mopar specific magazine, use SBC test data.

While I am not familar with the specific ad you are talking about it's possible this is the case.

I remember an ad for one of the aftermarket SBC heads that compared their head on a 350 versus a stock 305 head on a 350.

Hmm, let's put a small head on an engine that it never came with then show big gains. Yeah, that'll get the suckers.


You gotta take ads with a big old grain of salt.

Thor

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YOu gotta realize most car ads, even in mopar specific magazine, use SBC test data.

While I am not familar with the specific ad you are talking about it's possible this is the case.

I remember an ad for one of the aftermarket SBC heads that compared their head on a 350 versus a stock 305 head on a 350.

Hmm, let's put a small head on an engine that it never came with then show big gains. Yeah, that'll get the suckers.


You gotta take ads with a big old grain of salt.

Thor

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Huh?? What does this have to do with kickdown linkage?