Moving along with my RB conversion. I have been instructed to buy an old 727 and have it re-built. Can I buy any year 727?

It is a 1968 Satellite and a 1978 RB 440.

Thanks

 

I THINK there are two different types of 727's. Some are longer than the other. This is because some are for small blocks, and the others are for big blocks. Someone else can give you a better answer though.

 

i know there are 727s for small blocks but I'm trying to avoid buying one and getting stuck..

 

While looking through the PAW catalog, I noticed it gave a measurement for the difference in the big and small block 727s. It shows a BB 727 as having an 18-3/8" tailshaft, and on the bellhousing, a distance of 6-1/2" between the mounting bolts on the top. The SB 727 has a distance of 7-3/4". These appear to me mounting bolt locations, so dont confuse them with locating dowel holes. Hope that helps.

 

thanks Scotts. That should help...

 

the pre 65 727's both big and small block have different valve bodies and shifter linkage, some are set up for push button selectors. Go with a 67 and up tranny as more parts and upgrades are out there.

 

Also, avoid the short shaft 727. They were used in 4X4 apps and have don't have a slip in yoke. I mad that mistake myself when I bought my first 400/727 combo.

j

 

thanks octane and everyone. I'll take this info and go searchin for a new tranny. btw... the engine should be ready in a few weeks.

 

don't forget to post pics of that