Hello I have a 2003 F-150 4.6l vin W that dropped a valve and chewed a piston, I’ve got the piston out and the replacement I bought, a sealed power H878cp, which from my searching is supposed to be the replacement part, is 33 grams lighter and I’m not sure it’s the right part.

i know I should replace all of them which I might now but I still can’t figure out exactly what replacement part I should be using for a stock motor.

i had a thread about diagnosing the knock but thought I should post this in a new thread.

thanks