dbarron709
New Member
Hi, I am replacing the pistons and rings on my new to me 97 Challenger. I removed the current cylinders and pistons. The pistons are stamped with 1.00. I measured the cylinder bore to be 82.74mm. If the pistons are 1 full mm over, I figured my cylinder bore would be around 83mm? Any thoughts?? My thought is to just replace with 1.00 pistons and rings but wanted to check here first. And the boat was running pretty good, except hard starting when hot and compression test showed 130 psi, thus the top end.
