SRT4 Piston bore specs/compression specs

Ok guys, the reason we are posting this, is due to a customer ordering some custom pistons and screwing up the measurements. Now we have a tricky situation where a customer told us the measurements of what he wanted, we had made with JE and now we have a set of custom non usable pistons! So, heres some tech on piston/bore specs..

For the record – when pistons are refererred to as overbore, the measurements are typically in inches, not millimeters.

Stock bore size of a 03-05 SRT4 : 3.445 inches.

When a piston is 20 thousandths overbore, that means, that the piston would be sized roughly 3.465 inches instead of 3.445.

I hope this bit of information helps someone out there!

Written by Modern Performance

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