Info on the WF generations

Is there a big difference in the World Formula generations that came through the years?
I haven't been messing with them long... Are you talking about the blocks? Thats the only generations I've heard people talk about, faster motors has good read on what changes with each gen
 
They went thru some of the same changes over the years like the animal did.
Cylinder head from old casting to RT1
Small rocker stud to 8 mm stud
Old style piston to new supplier
Welded dyno camshaft to China case hardened camshaft
Cast crankshaft to forged style
A few tweaks to cylinder block
 
Thank you Steve, I figured it basically followed the different animal generations but most of my experience is in the Animal I have only seen a few World Formulas through the years.
 
There were also magnito / rev limiter changes. Originally a cast flywheel with a separate rev limiter. Then a small run of aluminum flywheel with PLV. Then a better run of flywheels with the PLV.
 
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