Re: Who's Running the Super Rat?
That is the high pin piston and its for a 38mm stroke long rod geometry... it'll work on the gt5 engines and the super rat is a gt5 based engine with the main difference being the wider intake bolt spacing and the cdi and ignition coil are built into the magneto coil. This is a very nice design for a really clean looking install but the internal cdi is notorious for failing.
Id like to build up a super rat but would want to have a reliable source for spare cdi units before getting one of these engines. If the cdi unit problems have been resolved then this would be a great engine to base a build on.