| I had a customer send me a ATK rebuilt motor out of his car and they had ground off the marking on the N/A heads. Typically N/A heads are marked 30P-L and 30P-R TT Heads are marked 40P-L and 40P-R Do the heads have any heat tabs on them? They are about the size of a dime and look like this: 
Kyle "Grumpy Bear" Puckett Import Parts Pro Phone: 281-288-0700 AIM: KyleatIPP Yahoo: KyleatIPP |