Starting my engine build

[Mrturner1]

I'm also wondering how to tell (if there's a way) if this bottom end had actually been freshened up like the PO said. And what do stock Pistons look like? And also, how can I tell if my pistons are in good enough shape to carry on for a while?

Thanks for all the great replies and info guys

Matt

[toolboxchev]

Originally Posted by Mrturner1

I'm also wondering how to tell (if there's a way) if this bottom end had actually been freshened up like the PO said. And what do stock Pistons look like? And also, how can I tell if my pistons are in good enough shape to carry on for a while?

Thanks for all the great replies and info guys

Matt

For a visual only inspection do the following.

1. The Piston Cylinders should have a good cross hatch showing with little up and down wear.

2. The top of the cylinders should have no lip, wear the piston travel stops. If you have a substantial ridge there and little cross hatch in the cylinder it would likely be time for a entire rebuild.

3. The gap on the connecting rods can be measured with a flat feeler gauge the specs can be listed in a rebuilding manual or shop manual.

I would like to see others chime in on what they would look at. This should give you a good basis for evaluating the necessity for a complete rebuild. Most guys and shops will tell you to go ahead and bore the block since you already have it apart.

I have over 50k on a top end only rebuild. It is still going fairly strong. I do not however use this vehicle for any type of daily heavy duty hauling or towing. Nor will I.

Look at what your overall objective and budget is.


I used a Comp Cams setup for mine. Their technical assistance folks are top notch and have seen my problems through to a win!