440 Throttle Return Springs

[Lord Sparky]

I would like to switch from a single spring to dual throttle return springs (inside each other) for safety reasons. The single spring has always been attached on the notched bar as seen in the photo “current”. Can I attach the two springs in the “proposed” position where the throttle cable attaches? The other photos show the contracted and stretched lengths. Any suggestions on springs that will fit with the correct tension? I looked at many, hard to judge.

 

[Demonracer]

Use something like this, available at most parts houses.

 

[eekvonzipper]

Can you turn your spring retainer around?
So it's facing the carb?

 

[Lord Sparky]

Use something like this, available at most parts houses.

View attachment 1715658105

Will those stretch 8 inches when installed, and further when the gas pedal is floored without breaking?

 

[Demonracer]

I would go to my local parts store & check them out, I was just giving you an example.

 

[eekvonzipper]

Mine are 5" relaxed and 7" floored
using the one that DemonRacer posted

 

[Cuda Al]

The factory put the spring in your proposed location, your current location was for the kick-down linkage and spring.


Alan

 

[Lord Sparky]

Can you turn your spring retainer around?
So it's facing the carb?

View attachment 1715658114

Not for the stock.

 

[65Val]

I would like to switch from a single spring to dual throttle return springs (inside each other) for safety reasons. The single spring has always been attached on the notched bar as seen in the photo “current”. Can I attach the two springs in the “proposed” position where the throttle cable attaches? The other photos show the contracted and stretched lengths. Any suggestions on springs that will fit with the correct tension? I looked at many, hard to judge.

View attachment 1715658084

View attachment 1715658086

View attachment 1715658087

Your "Proposed" location puts less strain on the carb body where the throttle shaft goes through the main body.

 

[oldkimmer]

I have a box of factory throttle return springs. I’ll post some up for sale in the morning. Kim

 

[Lord Sparky]

I wound up finding/getting these. Perfect fit. For Mopar Dual THROTTLE RETURN SPRINGS 340 440 Plymouth Dodge Cuda Charger Dustr | eBay

 

[AndyF]

I've been making and selling Mopar throttle return kits for a long time. Throttle Returns | AR Engineering

 

[Lord Sparky]

I've been making and selling Mopar throttle return kits for a long time. Throttle Returns | AR Engineering

Nice!

 

[AndyF]

I wound up finding/getting these. Perfect fit. For Mopar Dual THROTTLE RETURN SPRINGS 340 440 Plymouth Dodge Cuda Charger Dustr | eBay

Those are mine but without a bracket. If your existing bracket worked fine then you should be good to go.

 

[oldkimmer]

I have these in a for sale ad. Kim

 

[Lord Sparky]

Those are mine but without a bracket. If your existing bracket worked fine then you should be good to go.

Oh wow! You’re the “A” in “AR”. Nice job!