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lol moi! swaps? :P

Nah stock cam gears.. Well, he hasn't said. That response was based on a different thread I showed him not this one. I will ask him though!

His response to piston slap was this: "they are talking about offset piston pins so that the piston sits slightly skew in the bore to eliminate piston rattle on motors with large piston to bore clearance. Doesnt apply in your case since the piston to bore clearance is not alot, in fact i dont...

Hmm.. ok well I'll be sure to discuss all of that with the builder. If is it piston slap, what is the general outcome of that? another rebuild? Other than that, do you guys have any other suggestions for possibilities?

I really have no idea about the pins but he assures me it is not that.

I've just had my GSR rebuit. CP Pistons 20thou over, spool rods, all balanced etc etc Everything seems perfect except this horrendous head noise. I know the 93's are renowned for lifter rattle so initially we assumed it was that. The builder just replaced the lifters with arftermarket...

can I hijack a little? :P Did you end up resolving this? I just built my 4G93t as well and it had severe lifter rattle. Just had it back with the builder to replace the lifters and they put little shims in to compensate for the gap that shouldn't be there and they're quietened down a fair...

Well that sux! lol Thanks anyway

Do you still have the box? If so, what condition is it in? Syncros? Crunching gears (i.e. what's 3rd like)? When was it last in a functional car? etc etc I know someone in Canberra who can pick up as well.