What is it a 230 or 250 GM straight 6 F0916CCD 10W147291 Casting #3921968

[Cpotter78!]

Both of those motors came from something else and were transplanted into the boats

I need a front main seal do i have to tear the engine apart to replace that

 

[achris]

You should be able to do that by just removing the harmonic balancer. Then dig the old seal out and push a new seal in...

Chris.