Evilchicken0 wrote:So why would you want the swap ??? There isn't enough of a performance difference to make it a worthwhile swap.

I directed him here because I've got my 3TJ engine for sale on ebay and I'm buggered if I know what fits what.

Have a look at the sticking a 600 motor into the 400 frame sticky in workshop??? its very inforamtive and looks very easy (this is what i bought the 600 engine i have to do)

A fer few spanner monkeys on here done the swap with very pleasurable results would it be fair to say???

Yes, my 3TJ 400 with 4JH 600 engine is as mad as box of frogs and the induction growl with the airbox snorkel off is hilarious

Alright guys,

I'll take a look at the workshop section to fit a 600 engine inside the bike - all I need to do now then is source a 600 engine!

Thanks for your input.