Need some Help!!

damnimcooltom said

Your casting number doesn't match anything I see used in the U.S. It's not a 340/360 head, they would have larger ports.

A U.S. 318 head would have a larger, open chamber, so the compression would be lower with a U.S. head.

Click to expand...

Thank You damnimcooltom!!That's the information a needed.I discovered yesterday that this heads came from a Brazilian version of Dodge Charger R/T,it's 318 LA heads ,but on the Dodge Dart(Brazil)we had (7,5:1) compression, and the Charger R/T had a (8,4:1).That's the diference.Thank's for the help