This head I am reliably advised is unusual. Markings VW Mexico 11-2-86 070 101379B VW10, inlet valves 35 x8, exhaust 30 x 9. Long reach plug (not short reach) combustion chamber 64cc approx.
cylinder seat to cooling fin surface depth 7mm. 0857827537. Tnx, E
cylinder seat to cooling fin surface depth 7mm. 0857827537. Tnx, E