ProComp/Speedmaster aluminum heads
Well I've been calling local cylinder head shops and there's plenty here. In no danger of running out..
First guy I talked to kind of talk to me like I was a bit stupid because I'm trying to have brand new in the box heads checked out? He commented he wishes he could sell them that way... He said but they're new? He said they would probably lay around here for at least a week waiting for somebody to look at them.. then suggested a couple other people...
Second guy called cylinder head shop by name, again I was questioning why I would think that I would need brand new in the box assembled heads looked at? He said I could put them on his counter and he could waive his hand over them was his comment... he said likely they would just take a couple Springs off and make sure they're lubricated and such.. you could almost hear him laughing and shaking his head like bring them in I'll take your money...
THIS IS EXACTLY WHY I LIKE TO TRY AND DO STUFF MYSELF IF I CAN...
It's not that I don't have the money for a simple check it's when you call and they come off so Superior because they have all their fancy equipment and knowledge...
really? You call a professional reputable shop and he talks about waving his hand over it....
I can tell you that we never, ever and by ever I mean NEVER took a set of heads out of a box and bolted them on. Ever. Didn't matter if we ordered the heads, or a customer brought them in.
Too much stuff happens. Dirt gets in there. Metal chips that didn't get washed and blown out migrate around while being shipped and make their way into places you'd never think.
Sometimes the decks aren't very nice. Most of the time, even with "CNC" chambers, you find the chambers aren't the size they should be. I've also seen guides that were actually hour glassed shaped. That happens when the guide is finished before its pressed into the head. If you check the guide I.D. just by wiggling the valve, it will feel pretty good but when you put a dial bore gauge in there and find it.
I could go on and on about the stuff you see when looking at new heads. Check every head, every time. I've seen valve jobs so wacky you'd be stunned. One set came in and the valves were sealed. When I took them apart, the seats were cut with tool bit, but they were so out of round, they hit the seat with a stone. Which is why they sealed. The bad thing is, the seat was .125 wide.
So I'd say keep calling a shop until you find one that doesn't insult your intelligence when you tell,them you want them to look at new heads.
Just my .02