What am I in for

Amata Bene said

Good to know. They do have square rocker stands. No rockers just valves & springs. I only have what he said and he did say "magnum". He said the truck was an "89", nothing about the motor.

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Magnum heads won't have the heat crossover. Magnum heads won't have the same angle of intake bolt holes. Magnum heads will have blocks or pedestals for the rocker arms, not cradles for rocker shafts. You better read up a little and look at pictures so you know what your getting into. Magnum heads have been put on LA engines lots of times, but you just have to know what to expect.