Gain extra benefits by becoming a Supporting Member Click here find out how!
Gold ***Platinum***
427SHP 64ss508 paintman (4)vet65b (6) HotRodg57 (9)cdandelivery (12)4dr 57 (8)tahoe52deluxe (3)60Impala18374dr 57 (8)56_Kruiser (4)fantm2flyer (3)agleasontoastkajun postalcop back2chevy speedygman (7)Mike JW (4)kwhizz (8)
ForeverYoung (6)stumppuller (5)wings59 (8)jel1957 (7)richardr shubox56 Vagasbill
boobies 58
Jerry Acheson (13)
Thunder Road (2)
Classic Performance Products Classic Parts
Ciadella InteriorsAmerican Auto Wire Classic Industries
Hellwig Products IncPerformance Rod & Custom
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy

Join the Community today

Username Post: A education on Spark Plugs
Senior Member
Posts: 9701
Loc: Plano, TX
Reg: 08-28-03
02-20-12 09:03 AM - Post#2192906    
    In response to technitom

Precious metal electrodes (iridium and platinum) last longer, so will maintain the proper gap for a much longer time. They have allowed new car mfrs to extend plug change recommendations to 100K miles. If platinum-tipped plugs cured a fouling problem, it's probably because they were a slightly hotter heat range.

I'm not sure what, if anything, copper core and Rapid Fire plugs do that other plugs can't. I guess a copper core could reduce resistance, allowing more spark current, but who knows if the performance increase is even measurable?

1982 C-10 SWB pickup -- Unmolested base truck, original paint, originally with 250 six and 3-on-the-tree
Now has 355 with Vortec heads & RamJet roller cam, TH350
Retired, but working part-time on 50s-70s cars and trucks.

Edited by MikeB on 02-20-12 09:05 AM. Reason for edit: No reason given.
NOTE: You are viewing an individual Post. View the Entire Topic
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.172 seconds.   Total Queries: 10   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 04:51 AM