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Supressor vs Resistor plugs?
#1
What is the difference or purpose of resistor or supressor plugs. I was looking for NOS plugs for my 351c 4v and just not sure which is best. Thanks

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Vehicles: 1972 Sprint Sportsroof CJ
2011 F-150, Lariat 4x4, Super Crew
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#2
A suppressor sparkplug has a small coil of wire that restricts high frequency AC current as the spark jumps the plug gap. It doesn't affect DC current. A resistor plug restricts both AC and DC current and weakens the spark energy.

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Yea,Tho i cruise through the valley of the shadow of rice,I will fear no Turbo,For Torque art with me.Thy rods and crankshaft,they comfort me. Big Grin Robert
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#3
Aren't both used for noise supression? I do believe resistor plugs and supression wires are necessary with electronic ignitions.

Jeff T.

Low buck, touring style, '73 Convertible "rolling restoration", 351c, 2v heads with a shave and a haircut, Performer intake, Holley 650(ish), roller rockers, screw in studs, guideplates, stainless valves, Duraspark / Motorsports MSD, T-5 conversion. 1-1/8" front, 3/4" rear swaybars KYB shocks and some home brewed subframe connectors. Future plans; JGC steering box, Cobra brakes and... paint, interior, etc.

When I die I want to die like grandpa, peacefully in my sleep... not screaming, like his passenger.

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