Re: 5.0Gi Volvo SX performance options
Shave weight, increase HP. If money is not a major problem do this, get a 350 short block, must have a good forged crank, and pistons, you can buy a crate marine short block, or if you have the skills, put one together yourself using top shelf components. The 305 Isn't a bad engine it is just limited by it's small bore, just not as efficiant at making power. Get a set of Aluminum heads, and use the rest of the components off your old motor, fuel system water pump, and all the acc. will bolt right on the 350 block, including the damper and flywheel. You can then sell your 305 long block to someone who needs it. You can easily make over 300 HP and lots more torgue than the 305 and that should get close to 60 MPH with a load on. Never leave well enough alone, when you can make it faster!