I am considering buying a .46 Irvine engine and was wondering how it compares to the OS engines.

Any thoughts? I hear the Irvines are pretty sweet especially at idle. Nice carbs.

The Irvine 46 is a good engine. Comparable power to the OS, better carb, and true chrome sleeve so odds are it should last longer.

what Sport Flyer said and it looks better two... i don't have a 46 but I have a .53 a .72 and a friend has 2 1.50's

I have an Irvine .46 in my 4*40. It runs and performs very nicely. It's a quiet and smooth running engine and usually fires up on the first flip. Has nice torque for it's size and seems to really sip the glow fuel...

It's getting easier and easier to beat OS these days.

I love the OS 4C engines, but the 2Cs are getting really "dumbed down" and are......"boring".

go for it have a 46 and 3 53s(irvines) sweet

if you thinking about the 46 get the 53 for a few more bucks
same size case more punch my first was the 46 then a got
a 53 either one 46 4 stars 53 is 5