540 BBC-what spark plugs
#1
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Just finished my 540 build, Dart block, Canfield aluminum heads with 9.5:1 compression. Stock heat range plug be fine or should I go a step colder?
I believe I have BPR6ES’s in there now which I believe is stock heat range for 502.
I believe I have BPR6ES’s in there now which I believe is stock heat range for 502.
Last edited by H8TOLUZ; 07-21-2020 at 01:38 PM.
#2
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do those heads use a crush washer ?
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articfriends (07-25-2020)
#5
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what will this cross over to