34powerquest

how fast do you think i would get with a 496 HO? and what would be the right prop

thanks..

Mentalpause

I had a 98 27 foot with a 454 mag, 385 hp. My experience with PQ was that the speedo was very happy. In the end I thoguht that boat would run 56-57 in mid summer mid west waters.

Fast Forward

If your referring to a 26 with a 496 I would estimate around 70 mph.
With a 454 mag EFI I've seen 58mph to 62. I've heard guys with the 502 seeing 68+.

dtsquest

You should be right aroubd 70 or 71 with the right conditions. Just a guess, but I would say either a 23p Mirage Plus or a labbed 25p Mirage Plus for max top end, or a 24p 4 blade

34powerquest

thanks guys...has anyone ever tried to put the new CMI headers on a 496 HO? and if you have how much more power have you noticed..thanks!

Fast Forward

34, If your chaging out you may want to consider a 502? Only becasue there's a lot of them out there and I bet you'll save some $$$ Not sure on the headers I know a few guys have changed them. Matter of fact there's on for sale on this board and its a 454 310hp that he made some mods to including headers. Seems to me he stated he was seeing 60-62 mph with that setup.

34powerquest

thanks....i want a new engine so i can break it in right and do the right stuff to it from the beginning so i don't have any problems that i don't know of...i want to spend at most between 11 and 13 grand...do you guys know of any 502's (new) for sale...i like the HO also because more HP of course and closed cooling because i boat in the Bay....thanks