your best bet would be to pm robster.... but imo i woulndt spend the money on basically the same head.... the newer heads have more of a square shaped combustion chamber design for what im guessing is a better quench area.... the head should bump your compression about .2 and if you dont know what youre doing using the 96+ manifold can be tricky... you most likely wont feel any significant gains from the swap itll just be expensive and a headache... and 100000 miles isnt shit for a honda engine.... i have 180000 on my vx and i havnt been able to blow it up yet!! yes i try to blow it up! i hit rev limiter all day long and beat the hell out of it... its a champion! just save your money for the swap...