ProComp/Speedmaster aluminum heads

The way I take it is this: even if u do a valve job the warranty is null and void, including springs, retainers and locks change. U can’t make any changes, u have to use them as they left Procomp/ Soeed Master. So basically no warranty whatsoever. Maybe I got it wrong, but u might want to ask whoever ur talking too. Kim
agreed, I wouldn't expect any manufacturer to warranty something that's been modified or fiddled with.