Picking Up 340 Short Block - What to Look For?

I used the term short block. Sorry it is just the block and caps.
Thanks
Ron


Without some measuring tools, you'll be hard pressed to do more than give it the stink eye and see what you see.

At least a pair of calipers would help. You can measure the top of the bore and see where it's at. And torque the main caps and see what you see.

If you have a 4-5 inch micrometer and snap gauges and are careful you can verify the bores down the hole and get a little better idea of the main bore sizes.

Now, if you have a dial bore gauge you'd be pooping in tall cotton.

Look for bad threads and bolts broken off in the holes. They can be a PITA for sure.

Look at the main bearing saddles and look for cracks there. You can't really see cracks without a mag, but sometimes you can see them in that area.

Just ASSume you'll need to bore it (again, unless you have a bore gauge) line hone it (I line hone everything) and deck it.

Price accordingly.