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Radial Spark Plug Size?

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Buster1

USAF/Bonanza Guy
Joined
Nov 2, 2013
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Due to demand and questions...I'm finally making some custom plug trays for you radial guys! Expect pics and examples on the webpage in the next week or two.

However, I am needing some help and confirmation on some of the sizes for spark plugs used in radials. Are they the same 7/8" hex as the ones we use in our flat 6s?

Thanks, and if you guys have any ideas or requests, let me know. The prototypes are coming together.

Buster / Nate
 

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