Offshoreonly.com - Stroke, Blower, or Whipple

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Re: Stroke, Blower, or Whipple

swede have not heard from you we are trying to work out going to keywest hope your motors are working out

Re: Stroke, Blower, or Whipple

A hydraulic roller cam designed for the supercharged marine engine is a nice way to go. You can have the combustion chambers on the heads opened up to 130 cc and get that compression down. Use a good head gasket like the one from FelPro with the wire in the fire ring to seal those combustion chambers tight. I like to gap my top ring at .026 for that bore size so the ends don't butt from the heat. Ample fuel is a must, lines from the tank to the carb must be sized accordingly or a lean condition will occur. Get it right and you will be happy with the modifications.
Good Luck
Ed

Re: Stroke, Blower, or Whipple

What hydraulic roller cam would you guys recommend for the 509?

Re: Stroke, Blower, or Whipple

572CI or 540CI gm block w/ supercharger.