The Limey
Evil English Villain
Which is what I started with! Tired old biked have tired old engines, more so if they're revvy small bore valvers. I'm not dismissing the idea, but finding an engine with guaranteed provenance isn't likely to be easy.
Thundercat and the FZR-R motor is very similar, being derived from the Fizzer, but isn't a straight swap. Chain line and mounts are different. It can be done, but is a job of work. In fact, swapping bits between 'cat and Fizzer you can build a 660.
I'm waiting for an email back but I'm looking the in the order of £250 for a head build, so with a used block and rings i'll have a motor running close to new spec. Provided the bottom end is sound then lid rather do that than spend similar on another engine that'd probably be pretty tired itself.
Thundercat and the FZR-R motor is very similar, being derived from the Fizzer, but isn't a straight swap. Chain line and mounts are different. It can be done, but is a job of work. In fact, swapping bits between 'cat and Fizzer you can build a 660.
I'm waiting for an email back but I'm looking the in the order of £250 for a head build, so with a used block and rings i'll have a motor running close to new spec. Provided the bottom end is sound then lid rather do that than spend similar on another engine that'd probably be pretty tired itself.