If you buy from this outfit in Florida,it will be a risky transaction. I bought a set of heads from them recently. I received the heads and took them to my machine shop for the install.Later in the day I received a call the shop saying the heads were junk. looks like they had installed used valves with a wrong angle!,nowhere close to the "3 angle valve" job I was told they would have. machine shop said the engine never would have started! Called Clearwater and "Bob" said I had voided the warranty by having the machine take them apart and check them!! he was mad and very rude.He finally agreed to have me return his junk. a month went by with no news so I called and first talked to Tim,he was surprised that this happened,said they rarely have problems(yea right).He then turned me over to"Bob".He told me they refunded my money for the heads. I told him his warranty said replacement heads, he said no and then said my orginal heads would not be returning to me also. He was extremely rude and was yelling so loud I could't even understand him.he then hung up on me! they did refund to my credit card,however I am out a set of heads for cores.So basically "Bob" the president of the co is nothing but a low class thief. beware! if I posted this in the wrong forum please move. rant over. geeze!