I bought a 258 from a friend who will be installing a 302 in his CJ5. It appeared to be a rebuilt long block so we checked compression and it was 160-165 on all cylinders, checked two times per cylinder with the carb opened full throttle.
I pulled it down to the short block last night and determined that it is bored .040 over, the valve train was very clean, almost like new and the cylinders had no detectable ridge.
I grabbed my telescope gauge and micrometer and found maximum taper and out of round to be .002, Haynes calls for .001 max.
I have a huge amount of work to do to the Jeep before I can get it on the road. With the compression readings and bore and taper measurements, should I hone and install rings and bearings?
Or, should I torque the main and rod caps and put it back together?
Most likely I will put less than 5K per year on the Jeep.
I do plan to install a cam, lifters and timing chain while it is on the stand.
