is there any specialised datsun dealers or companies that sell parts for datsuns i want a a15 block and twin su manifold but i dunno where to start looking

Specialised datsun places started disappearing 5 years ago. These days, you've gotta look in the trading post, or on the net, to get second hand stuff out of peoples garages.
It's no longer a sport... It's a hobby I'd say. Because money doesn't buy everything these days (This is why the datsun specialists have disappeared). Nissan Japan has almost run out of parts too.

I've got an SU manifold if you're interested and A15's aren't too hard to find.

wat size su manifold is it im after 1 3/4 's, where exactly do u live i saw that ur profile says sydney im out at campbelltown. how much u asking?

dont worry mate i just checked out the atlas and ur in new zealand

Is the manifold for an A15?

i have an a12 at the moment but i will be buying a a15 soon, ive heard though the inlets will exchange from a a12 to a15

Check out the Part Sources article. This lists some places that still have Datsun parts.

Nah I'm in Sydney - it's off an A15.

Ring Jeff Taylor at JTS Performance in Sydney on 0296238826. If he hasn't go tanything he will be able to tell you where to go mate. Anything to do with Aseries engines, this guy is the Guru........ Jeff builds and maintains most of the racing A series engines in the Country

Cheers
Peddler