Thinking of Stroking
 

I currently have 510 cu.in tall block motors in the boat they make 520 or so H.P. I just pulled the motors out and am thinking of stoking them. Unfortunatly I have TRS drives so I don't want to destroy them everytime I take it out with killer power. I was thinking either going to 540's or 572 cu.in. I don't want high compression only 8.5 to 1, so I thought stroking them would be my best bet.
540cu.in. what kind of h.p.?
572cu.in. what kind of h.p.?
and what cam would you go with.

What's your input

Thanks
Mark:confused:

Check300 is running a twin-turbo 572 making 1160 horsepower. KAAMA is running 540's making (I think) in the neighborhood of 690.

Give Bruce a call, (314) 731-3795.

mike

Holy Crap!!!!!Check300 is making how much HP????????????

I don't want to go with blowers. Naturely aspirated only .

he said "thinking of stroking" LOL

i can;t believe there are 5 replies nobody made any comment yet!!!

puder, Your right I figured someone would of said something right away. I guess you win
Mark:p

Hey puder, we're going to start the "Beavis and Butthead" sexual innuendo forum just for you!

I did the 540's aspirated on my cafe, with #3's. With 9.5 compression and cast merlin's, dyno at 603hp@5400 on 93 octane. With both tanks at 1/4, gps was 74mph. I have a friend who has a top gun with aspirated 572's. He's in the low 70's.

I would go with the 540's. A 572 in a low deck is expensive and not pratical for marine. Stay away from the cheepie cranks.