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st165 spark plug wires
- Thread starter strracerx
- Start date
you said that the st165 plug wires are shorter, though you still used it for your st185 motor that required a longer stem? :shrug: .. i mistakenly bought the a set of st165 wires for my st165 which has a 2nd gen 3sgte. the wires were too short and would not reach the spark plugs.5speedGT4":3miycneg said:plug wires really are not, the st165 plug wires are slightly shorter than the 185s on the spark plug side, so the 185s will stick out on a 165.... but they'll work if you must, i had 165 plug wires on my 185 motor for a week or two until my trd wires came in.
alltracman78
Active member
strracerx":1lqeb49m said:and what about spark plugs, are they interchangeable too? i was reading on the NGK website and there different part #s.
Just a guess here, but I would say they're the same. Only thing might be heat range, 'cause of the different cr.
strracerx":1rzu2t6h said:and what about spark plugs, are they interchangeable too? i was reading on the NGK website and there different part #s.
Worthwhile download to have, explaining what all the different parts of the spark plug code mean: http://www.ngksparkplugs.com/techinfo/s ... berkey.pdf
Aside from the different heat range, the "CP" part of the 165 plug (BCP5EP) says that it's a 5/8" hex and "projected insulator type". The "K" plug for the 185 (BKR6EP) says it's a 5/8" hex and "Projected Tip (ISO)". So it boils down to what's the difference, if any, between a "projected insulator type" and "projected tip"? Anyone got some of each (same heat range) to compare side-by-side? I've been curious about this one myself before...
-Mike