looking to find specs on 340-X heads.

I meant nothing contrary against anybody. It's very possible that my book is wrong. And Rumble is right about it's like splitting hairs because as most of us agree they're all basically the same heads except for the valve size.

Terry I'm sorry if I offended you.:hello2: I didn't mean too. Was just stating, respectfully I might add, what the Mopar book showed. That's why I posted a pix of it.

I did also read the same thing online somewhere in the past but I don't remember where that was now. Possibly it was based on the same book I have???

I wish we did have a dependable mopar Bible to go by.:book: Would save allot of confusion.