Detroit 871

[ian w]

Asking for a friend
If a valve has destroyed one piston how easy is it to Jack the engine up,drop the oil pan and replace the bad piston

 

[bigbill]

top of the engine has to come off. exhaust manifold, head, turbo, blower. piston has to come out of the top of the hole.

 

[Captain Ralph]

On a 71, A piston and liner are easily replaced.
Then a new head.

Next question back to you; For just a few more bucks, is the engine is ready for an in frame overhaul?