1989 Astro 700R4?

[gprimm]

The Astro 700R4 should bolt directly to the 350. The 4.3L engine is a 350 with 2 cylinders left off. You will need a different tailshaft housing. Basically, any 700R4 will work, the bellhousing bolt patterns are the same.
It would need to be rebuilt for the SB's extra torque.

George Primm
Bolingbrook, IL

 

[joeairforce]

The Astro 700R4 should bolt directly to the 350. The 4.3L engine is a 350 with 2 cylinders left off. You will need a different tailshaft housing. Basically, any 700R4 will work, the bellhousing bolt patterns are the same.
It would need to be rebuilt for the SB's extra torque.

George Primm
Bolingbrook, IL

He has a 403 Olds engine......