I have several GX cylinder heads for sale. I race A-series here in the US, but I also buy and restore 1200 race cars for fun. These cylinder heads are excess parts. [I have a LOT of A-series parts and always will. Someday I should post a picture of my garage.]

MS-1 GX cylinder head, fresh valve job. Dual valve springs, 37mm intakes, 30mm exhausts. Datsun competition aluminum retainers. Head gasket face surfaced. $850 usd.

MS-2 GX cylinder head, USED, no damage. Dual valve springs, 37mm intakes, 30mm exhausts. Datsun competition aluminum retainers. $600 usd.

DP Kit-1 GX cylinder head, used with some damage. The damage is weldable, repairable damage to one chamber from a broken valve. The damage is small enough that you could do a valve job and leave the chamber as it is, but I recommend welding first; then replacing the valve seats; then doing the valve job. The head comes with (4) GOOD USED matched intake valves to fit and (4) good used exhaust valves to fit; (8) sets of dual valve springs; (8) Datsun competition aluminum retainers. $350 usd.

thanks, Peter
email PeterZekert (at) juno (dot) com