Re: Do slant heads really make a difference in power?
What i notice about the slant head is this.....
Th PK80 that i have with the slant has a dome shape piston.
The piston travels .145 inches above the top of the cylinder at TDC.
So it is inside the head.
Combination of the head and piston and stroke = higher compression.
The proper way to check the combustion volume is to put the piston at TDC.
Use a graduated dropper and fill the head with oil till it reaches the plug threads.
That's the volume.
I will say even milling down a std head on sandpaper and glass and replacing the gasket with a really thin one creates much higher compression.
And a huge power boost.
Also runs much hotter and harder on the bearings.
But i like it.