Originally Posted By LAD 524
Great - the Eddy air gap speaks to me wink

As a side note, what MSD or ACCEL COP coil is the right length for an Indy head/valve cover on a Hemi ?

Will the Mopar V6 or Ford Coyote coil be long enough? I had a look around but the lengths of these coils cant be found on Holley's website.

Has anyone done this Rich ?


Coyote coils fit ... the coil boot that goes over the spark plug is ~1/2" too long and needs to be trimmed. As long as the Coyote coil you choose uses the stainless steel spring as the connection between the coil and the spark plug electrode, you can push it on and it will fit. I purchased the MSD Coyote coils and once trimmed, they fit properly into the spark plug tube. The pictures below show a stock replacement Coyote Coil trimmed to fit a stock Hemi spark plug tube.

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1972 Pro-Street 'Cuda, 500" Eagle stoker B Block, Eddy RPM heads, Victor Manifold, 850 Mighty Demon, Hemi 4 Speed, Dana 60 w/4.88 gears - Built by Hansen Racing Middlesex - NJ