FuelishBehavior
Petty Officer 2nd Class
- Joined
- Aug 7, 2012
- Messages
- 139
I'm about to stab my new 496 stroker into my boat. I'm pretty sure that going from 300 hp to 550 hp will require me to prop up. Currently have a 21 pitch that was right on the money for my original 7.4L which redlined at 4600 RPM's. My new 496 stroker should red line around 5600 with the hydraulic roller I've chosen and given the max piston speed of 4000 fpm that I don't want to exceed. I'm thinking one size up to a 23 pitch should be about perfect....I'm looking for anyone with their suggestion based on experience. Boat weighs around 4000 lbs, 1.5 outdrive ratio, assuming 12% slippage. Thanks for any insight...stainless steel props are expensive to use and be the wrong one.