Spark plug gap for 408?
03-27-2009, 08:26 PM
#1
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Spark plug gap for 408? H/C 408, 11:1 compression, no nitrous. Having some backfire issues on the dyno so we're swapping plugs in the morning. Gonna pick up some TR6's, just curious what I should gap them at? NGK BKR7E (#6097) .040" for N/A
was what was recommended I run in this motor, but hard enough to find TR6's locally, so not sure if I can find these.
was what was recommended I run in this motor, but hard enough to find TR6's locally, so not sure if I can find these.
03-27-2009, 08:36 PM
#2
H/C 408, 11:1 compression, no nitrous. Having some backfire issues on the dyno so we're swapping plugs in the morning. Gonna pick up some TR6's, just curious what I should gap them at? NGK BKR7E (#6097) .040" for N/A
was what was recommended I run in this motor, but hard enough to find TR6's locally, so not sure if I can find these.
was what was recommended I run in this motor, but hard enough to find TR6's locally, so not sure if I can find these.
My last plug change all I could find at my parts stores was TR5's (they are the identical plug as the TR55). I gapped them to .052 to split the difference. My 427ci, 11.3:1 compression....couldn't run more perfect.
