5hp Briggs Mod

[solomon]

Well Im picking my kart up tomorrow and for the briggs, im pullimg the gov. Might do a pipe on it but i need this thing to be quiet for my neighborhood. I know its a bad idea but, do you thing i could use 8hp valve springs? I would use a washer above the keeper to make it fit. I know it sounds terrible but do you think i can push the motor to 6000 RPM?

 

[Kenny_McCormic]

A stock briggs 5hp will blow the rod out at 5K or so, if you replace the intake spring with another exhaust one, and install a dirt cheap raptor 3 rod you will pretty much have a gasoline raptor 3. Flywheel shouldn't be pushed past 5-6.

 

[solomon]

where is the cheapest place to buy a rod for it? thanks