273 or 318?

From your prior posts, it did sound like it would be a while before you could do any more to it, and I don't blame you. The heat I worked in yesterday about did me in, and it was about 20 degrees less than what you're in! Just don't let the block get away if it does turn out to be the numbers matching one to your car. 273's generally cost more to build because pistons aren't off the shelf for HP type, but they can be had. The rest costs about the same.

:thumbsup: