727 aluminum Accumulator Pistons?

[Rug_Trucker]

Looking to rebuild my A518 to go behind my 450hp Cummins. I have several B/C body 727's and even a 78 or 79 3/4 ton 727.

Aluminum accumulator pistons vs plastic? What year were they metal?

 

[Dave6T4]

From working on early Torqueflights I know they were aluminum through '60's and '70's. I was cleaning out my garage a couple of weeks ago, and junked a lot of used 727 parts. I know there were some of these pieces in there.

 

[1 Wild R/T]

Either use an aluminum one or a billet aftermarket, plastic are known to fail...

 

[ckessel]

Get ahold of these guys for great trans parts. Out of Indiana.
aandatrans.com

 

[451Mopar]

The double sealed billet ones are not that expensive. Some have the blocker rod machined into them too.

 

[Dave6T4]

Don't use a blocker rod. Part Throttle and "off the gas" shifts are too harsh. I just omit the cushion spring on my builds.

 

[451Mopar]

Don't use a blocker rod. Part Throttle and "off the gas" shifts are too harsh. I just omit the cushion spring on my builds.

Yes, The blocker rod is usually not used in the overdrive transmissions. usually in 727 Race builds.

 

[451Mopar]

You could support my buddy at Andrews Racing Transmission:
Andrews Racing Transmissions

Ask him if the blocker rod should be used in your application.

 

[dvw]

Go to a local rebuilder and get one. They are nothing special. I have plenty if you can't find one.
Doug