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Another thing is the Arrington heads are not all the same. The set I sold to Ryan are completely different than the set a buddy of mine has where Dave Weber built the motor and Vignona owned it. The motor was nick named the mule. Made a lot of power over my Arrington headed motor.



There were quite a few revisions of those heads.... your set were later ones with a heavily angled spark plug, & a small double quench pad chamber. Rick's set were std plug angle W5 heart shape chamber etc.

What exactly is an Arrington head? Was it a Zeus casting?