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Stainless Head Mount Ignition System Bracket
This brushed stainless head mount ignition bracket offered by Hardin Marine offers many options for your big block Chevy. You can mount an MSD or Crane spark box to the top. It has locations for your 50 amp breaker, starter solenoid, and factory Mercury cannon plug which can exit from the side or back of the bracket.
620-09004 bracket when used on some factory equipped HP Mercury applications:This unit is supplied with 3/8 ID spacers for use on aftermarket and LTE model BBC engines. In the event your cylinder head mounting holes are 7/16" thread, then the bracket and spacers are will need to be drilled out from the 3/8"ID to 7/16"ID.
7/16" mounting hardware IS NOT provided and will need to be sourced by the end user. For use with factory oil cooler to clear ignition coil additional spacing may be required. Cooler may need to be pushed forward slightly from the bellhousing a few thou for proper clearance.
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