kzn130 head replacement toyota or AMC

[owall]

cracked 1kz head ...should I go with genuine Toyota or AMC
does anyone have the genuine part number
how good are the amc heads

cracked at 4 cyl pre comp...a lot of people had the same failure
what mods can I apply to help with cooling

[Yorkshire Devil]

I think a genuine Toyota head in Trinidad would be a fortune in local terms and uneconomical best to explore the Amc route!