Looking at the IPL between the 340 (non-L version) and 420, the crankcases, crankshaft/rod, coil, muffler and carbs are the same.Anybody have experience with going to a bigger piston/cylinder? The 420 Magnum I use has way more power than the 340 my guy uses and it'd be awesome to upgrade it. I know I would need a carb to match so no big deal there.
The IPL would be very helpful and the 340 needs a new flex tube anyway. Do you sell the stuff?Looking at the IPL between the 340 (non-L version) and 420, the crankcases, crankshaft/rod, coil, muffler and carbs are the same.
The 2 biggest differences I can see are obviously the piston/cylinder which is 41mm on the 340 verses 46mm on the 420. The other is the flex tube to the tube tips are different for more flow. The tubes are 67mm on the 340 verses 80mm on the 420.
Never heard of anyone doing it, but looks like it would work. Just not sure it would be economical to do if using all new parts.
I'll post the IPL's for them if you want to compare further for yourself if you want?
Go for it then. I know for me doing all that work would cost more than just going and buying a new one.Why not? My 340 is getting long in the tooth and I like what the Magnum can do. I can do the work and it's less expensive than a new one. I don't blow anything but clippings so I don't need a huge cfm.
I am a Stihl Dealer but I don't ship anything. If you conclude that you want to order parts just get them from a dealer near you.The IPL would be very helpful and the 340 needs a new flex tube anyway. Do you sell the stuff?