new truck new problem

[csanderlin]

i just looking at a 76 k10 with a 400 well owners is saying the engine needs cylinder number 4 need oil ring replaces that it is makeing oil fouling out plugs i was wondering how big is it to replace. first time with older v8

 

[hinkv10]

Its a big job. If it was a bad valve guide you could pull the head while the engine is still in the truck and have the head rebuilt. Since it is a lower end problem you are most likely going to rebuild the engine. You need to do compression checks to see if all the cylinders including #4 have good compression.

It sounds like you don't have a lot of experience so to answer your question you are going to have to pull the engine.

 

[csanderlin]

i have done 4 engine swaps with different jeeps i bought and flipped but this first messing with v8 would it be easyer to just find a good 350 put in place of 400

 

[GreaseDog]

Do some research.... Dig into it and find out what's wrong with it for yourself. It's always best to assume that the previous owner is a total moron. Could be just the oil drain holes I'm the heads gunked up, causing oil to back up in the valve cover, then getting into the cylinder from a worn valve guide. Pull the valve covers, and put a leakdown tester on it, that will tell you right where your problem is.

 

[r.booser]

never believe previous owners. I have learned that mistake with vehicles in the past. Always check for yourself and find the route of the problem.