Throttle Linkage

[6twenty5]

Does anyone have any pics of the linkage on a 6cyl to SBC swap?

I am at a bit of a loss as to where to start.

Thanks

[markeb01]

Unless you have your heart set on mechanical linkage, you might want to consider swapping to a cable throttle. I switched mine to a 1971-72 model and it changed the entire personality of driving the truck. It is really smooth. Details of the installation are shown on my build thread starting around post #110:

http://67-72chevytrucks.com/vboard/s...=444502&page=5

[66Submarine]

On all my stuff it's really easy. The rod itself that normally goes from the firewall to the bellcrank goes to the throttle on the carb instead. On my 2 barrel 283, to get full throttle travel I drilled a hole in the throttle closer to the pivot and added a ball joint. Screwed one in the hole in the crank on the firewall, and used an old adjustable rod I had laying around to link it all up. Works nicely, and it's super easy to do.

[WhippinSaw]

here is some info on the mechanical linkage http://67-72chevytrucks.com/vboard/s...rottle+linkage

[66Submarine]

Here's a picture of mine. Not great, but you get the idea.

[1963c-10]

Why not just get a linkage from a sb truck and install? Only 2 bolts and about 10 min worth of work.

[6twenty5]

Originally Posted by 1963c-10

Why not just get a linkage from a sb truck and install? Only 2 bolts and about 10 min worth of work.

That's what I had planned on doing but I can't find the linkage. The body shop lost all but the rod to the pedal and the rod just on the other side of the firewall.

[MikeN]

This is reproduction linkage for a 67 Camaro with 396. One end threads into the other, so it's adjustable for length. Works great.

[1963c-10]

PM sent....I have a few people you can try.

[6twenty5]

Originally Posted by 1963c-10

PM sent....I have a few people you can try.

Thanks, great info.

[6twenty5]

Originally Posted by MikeN

This is reproduction linkage for a 67 Camaro with 396. One end threads into the other, so it's adjustable for length. Works great.

This rod connects to your factory linkage coming from the firewall?

[markeb01]

For about 20 years I just used a pair of rod ends and a length of ¼” all thread to connect the carb to the firewall pivot arm, and never had a problem. This shows the overall setup:



And this is the back half. Obviously I changed spring connections at some time:




These are the rod ends I used. The all thread came from a local hardware store:



http://www.summitracing.com/parts/mrg-3812g

[MikeN]

Originally Posted by 6twenty5

This rod connects to your factory linkage coming from the firewall?

Yes, exactly.

[gofastnut]

If you go the aftermarket route, Lokar has a couple of decent ones. If you're just after a cable, Mr Gasket makes a decent universal cable, my buddy used that one with good results.