View Single Post
Old 06-24-2013, 02:08 AM   #9
80SPORT
Registered User
 
80SPORT's Avatar
 
Join Date: Mar 2008
Location: red deer alberta
Posts: 777
Re: 1986 crate motor

The 86 was a transition year as mentioned.

1 piece rear seal but old style intake mount..and mech fuel pump.

We used lots of the 86 GM service replacement motors because you would get the 1 pc rear seal....no more rear oil seal leaks ...but could use the old style intake and a mechanical pump.

All you have to do is use the i pc flywheel/flex plate and it fits back to 1955.

The part # in my files is 12568759 for a brand new long block.
80SPORT is offline   Reply With Quote