Used parts out of a siezed-up engine are going to sell for about 25 cents on the dollar, compared to new ones, unless he plans to lie about how they got to be "used". He's going to be money ahead to fix the problem instead of buying somebody else's junk.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!