Olds 307 Crank + Pilot Bearing?

[DRIVEN]

And you also need the bearing retainer on the front of the transmission to locate into the hole in the bellhousing. So you wouldn't want to space it too far.

 

[jetsetw31]

Hello all, bill is right, I just came across this post. I have to put this out there. There are late and even smog 307s with the pilot hole drilled in the crankshaft. In 2010 i went by all who said there wasn't a hole drilled, bc I originally wanted to put my T-5 behind my 307 out of a '90 Sedan De Ville. I never questioned it. So i bought my rebuilt '73 350 sbo. In April, I switched the motors and saw the SMOG 307 had a pilot hole!!!

That crank hole was identical to my '73 350. I was upset with myself for a moment. Lesson learned.
IT'S A FACT GUYS!! So they are out there. Check your engine before spending your cash.
T.D.

 

[307 Regal]

Hello all, bill is right, I just came across this post. I have to put this out there. There are late and even smog 307s with the pilot hole drilled in the crankshaft. In 2010 i went by all who said there wasn't a hole drilled, bc I originally wanted to put my T-5 behind my 307 out of a '90 Sedan De Ville. I never questioned it. So i bought my rebuilt '73 350 sbo. In April, I switched the motors and saw the SMOG 307 had a pilot hole!!!

That crank hole was identical to my '73 350. I was upset with myself for a moment. Lesson learned.
IT'S A FACT GUYS!! So they are out there. Check your engine before spending your cash.
T.D.

Thanks for that. Hopefully it'll help the next guy. I already bought another engine. 😳