Cully's spare Gti6 engine

[Dum-Dum]

Ideally anything that turns mate; bottom pulley, oil pump drive, crank, flywheel, clutch, rods, pistons, gudgeon pins and the rod bearings and gudgeon pin circlips need to be checked to make sure they are identical weights.

Wow not sure I will go that far in to it, surely it would cost a fortune to have the lot balanced?

Not really, especially if your not having it lightened at the same time. crank/fly/clutch balancing takes the time, the pistons and rods are just machined to all weigh the same as each other.

Personally I'm not sure I'd have it all balanced together in case you want to change clutch/fly at a later date. so get them done separately.