That's the same 1.6 that went into the NA Miata's, isn't it?

If so (and even if not, probably same on other Mazda 1.6 variants), you should consider the front main and camshaft seals as well.

Also - you'll want a new crankshaft bolt. Early Miata 1.6's have a history of the bolts being stretched by overzealous mechanics when earlier TB replacements are done, resulting in the dreaded Short Nose Crank failure (search for that at Miata.net if you want to learn more).

__________________
1961 220b: first project car - sold.
2000 CLK 430: first modern Benz - sold.
2001 CLK 55: OMG the torque!!! - sold
1972 280SE 4.5: Baby Gustav
1991 300TE 4Matic: Gretel the Snow Bunny - sold
1978 300SD: Katz the Free Man - given away
1980 Redhead: Darling Wife