1969 Barracuda Fastback

Do you really need rings? What is the end gap if you put them in the cylinder? Rarely did the AC work long enough to actually need any ring/cylinder work if they are not gouged :)


NOS Mopar 2275207 A/C Compressor Piston Ring 1961-75 | eBay

I am really interested in how this system cools.. I can't get the Duster to work worth a darn. The Coronet forms icicles but the Duster can barely blow 50 degree air.