Early Y Block OHC 239 Spark Plugs

motorman8467

motorman8467

Member
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
 
The EBU 239 had 14 mm - the EBV 239 (most of these ended up in trucks in 55) had 18mm.

Of course, over the years people have changed out heads, blocks, and the whole gamut. I have disassembled several Y blocks that had mismatched heads.
 
Thanks, for confirming. I thought I was right, but, have couple of buddies, who didn"t believe me, so, I wanted to hear someone else say it. Thanks for your time.

James
 
Thanks, for confirming. I thought I was right, but I have a couple of buddies who didn't believe me, so, I wanted to hear someone else say it.
 
For whatever it's worth,
the '54 EBY / 256 engine I had used the metal gasket 14mm spark plugs also.



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FORD used CHAMPION from 1955 until they bought certain parts of AUTOLITE (but they won't), wanting mostly the SPARK PLUG DIVISION.

FOMOCO - ROTUNDA - AUTOLITE - MOTORCRAFT​
 
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