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motorman8467 · 07-19-2021, 01:02 PM

Did the early 239 Y Block have 18mm spark plugs, or, 14mm? Heard it both ways. I argue this once a week. Please, someone put this to bed. Thanks.

James

07-19-2021, 01:02 PM	#1
motorman8467 Junior Member Join Date: Jan 2021 Location: Mississippi Posts: 29	Early Y Block OHC 239 Spark Plugs Did the early 239 Y Block have 18mm spark plugs, or, 14mm? Heard it both ways. I argue this once a week. Please, someone put this to bed. Thanks. James