Quote History View Quote View All Quotes
View All Quotes
Quote History Torque converter, you’ll be looking at 40 series, plan on adding a jackshaft for the driven pulley. I’m not a fan of the “kit” that all runs on a common backer plate for big applications.
With the engine, you’re powered nicely, so big mods aren’t necessary unless you want to go hog wild.
To start: zip tie governer spring(valve springs will limit RPM to 5200(ish)
Bigger main jet (EPA has these running lean)
Ditch the muffler for a pipe
You can build that big if you want, but you’ll probably have big fun with just disabling the governer and getting it jetted for power.
Look up clone 420 performance parts to get a idea of what’s available. I build GX200/Predator clones, so I’m not in tune with the 420 market, but I can get you going in the right direction if you’re looking for more.