Installing 350 from a 86C10 into a 84 K10 With a 89 auto trans & transfer case

Preston · Apr 8, 2020

I have started the install and my first surprise is the flex plate doesn’t fit, ordered a new one yesterday. What else should I be prepared for?

You must be registered for see images attach

Preston · Apr 8, 2020

FYI I had installed a 89 motor transmission and transfer case and later found the motor locked up I think water got into engine after it was pulled and the rear cam bearing has locked up so I put head gaskets on the motor I pulled out of my 86 and trying to get the 84 4x4 on the road.

Poppy 87 · Apr 8, 2020

If the engine is indeed an '86 model, it has the 1 piece rear main seal, thus a different crankshaft than the '84. I would make sure that the torque converter bolt attach points line up correctly to your new flexplate PRIOR to installing engine into vehicle

Preston · Apr 8, 2020

Thanks I will do that as soon as it gets here

Preston · Apr 11, 2020

Well my new flex plate came in today, it’s just like the one I pulled off the 1989 the center hole is too small. The motor I’m putting in the 84 came out of a 86 might not be a 86 so I need a flex plate with a larger hole in the center can anyone help me? Should I repost this somewhere else? When did they changed the size of the flex plate?

Preston · Apr 11, 2020

I think I can answer my own question the 1985 flex plate has the larger hole than the 1986 just need to return it

Installing 350 from a 86C10 into a 84 K10 With a 89 auto trans & transfer case

Preston

Full Access Member

Preston

Full Access Member

Poppy 87

Full Access Member

Preston

Full Access Member

Preston

Full Access Member

Preston

Full Access Member

Similar threads

Latest posts

Forum statistics