[CampiNova]

Can an engine block built earlier than 86 have a one piece rear main seal?

Im at my last nerve with this block we bought because I can not figure out the year!! All the numbers I have looked up that are on the block say it is a 69-79 350 out of a Vette, but It looks like it has a one piece rear main seal. Then again I have never looked at the rear seals so it could be two piece. Should I just stick with the online number look up concensus and assume it is a 69-79?

 

[CampiNova]

I apologize I should more likely than not explain what my "oil pan issue" is haha. Well we bought this motor from a guy who had it in his flat bottom jet boat. We didn't think this all the way through and tried putting the motor in with a boat oil pan..... so it sat on the sway bar. Now we need to purchase a new oil pan, but it is difficult when you dont know the year of the motor.

 

[walkerjay]

Maybe if you post the engine numbers we could verify. Also, a couple pics may help. I am not aware of any older style motors with the one piece seal. Should be easy to tell what you have once you remove the pan.

 

[Paul Wright]

You'd know if it's a one piece seal because the crank hub doesn't have a flange and it has a smaller bolt pattern so the seal can be removed and installed.