Grantofhell
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It should be an ECU code stamp.
(At least that's how it is for Hondas) My block is stamped F23a1. My head is stamped P13-PF1 which is USDM H22a1 Years 92-96.
Not sure if that helps. Look up the RedTop ecu and vary it from the USDM ecu code. See if that's stamped anywhere on the head.
(At least that's how it is for Hondas) My block is stamped F23a1. My head is stamped P13-PF1 which is USDM H22a1 Years 92-96.
Not sure if that helps. Look up the RedTop ecu and vary it from the USDM ecu code. See if that's stamped anywhere on the head.