Hey all,

I'm putting a 350 TPI in next week in place of 305 TBI keeping the t5 that is currently behind the 305.

Does the 350 have a hole in the crank for the pilot bushing? Is this standard practice now to make

 

Yep, it should. I pilot bearing will fit in the crank where the noise of the torque converter was with the auto trans.

 

Thanks, I was hoping that was the case. Didn't want to pull the engine to find I needed a crank kit to get a pilot bearing hole. Way back in my day it was a crap shoot as to the crank being for a std or auto.

 

never seen one without the pilot bushing hole

ever

good luck

 

That was WAY back in the day indeed....

Some of the cranks produced for motors intended to be used with cast-iron Powerglide transmissions had a different size hole in the crank. Not "no" hole, just a different-sized one. I used to keep the "adapter" pilot bushing on my shelf (ONE of them, compared to a couple boxes of regular ones) just for the occasional legacy crank that I would have to work with. AFAIK these were only 265 & 283. AFAIK all 283s from about 62 or 63 up and all 327s, as well as all larger-journal motors, and all Mk4 and newer big blocks, have the regular pilot bushing hole. The last time I can recall using the "special" bushing was for an old Corvette motor I was building in about 1980. I had to wash all the dust off of IT and sand the corrosion off before I installed it. I didn't re-stock it.

 

I distinctly remember back in the 70s working on small blocks that had no pilot bushing hole. It may have been 283s as I worked on a few and it may also have been an issue with the odd size hole. Hell, lost touch for a while and have forgotten a lot. I also had a 67 or 68 camaro with a power glide once.

Either way, glad to see it is no longer an issue. When it works with both...

Thanks for the replys