WebConsider upgrading to Autolite Platinum, Double Platinum or Iridium XP plugs for improved engine performance. Copper core plugs are the industry standard. One-piece terminal post adds strength. Copper-glass seal … WebMay 12, 2005 · Guys. $1.25 Autolite 4164 for up to around 10 to 1 comp ratio. 4163 for above 10 to 1. If you like platinum and feel you have to spend more money the Autolite …
Harley Spark Plug Cross-Reference Harley Performance
http://www.sparkplugcrossreference.co.uk/ WebMay 6, 2024 · (Click on button to download) Cross reference sparkplugs for your Harley Davidson across major sparkplug manufacturers. Simply select which Harley engine you have in the dropdown box, then select which sparkplug manufacturer you wish to use. The application then shows the part number for the correct sparkplug for use in your bike. nrs writ mandamus
Racing Cross Reference Chart - Autolite
WebOct 8, 2015 · The motor is a 427 with 10.4 compression ZZ502 heads the Champion RC12YC plugs are the direct cross reference to the 3924 and are projected tip . 66 Chevelle, New combo,555 10.2/1,Foxwell ProMaxx heads, Straub solid roller, TH 400, 3.90, 3815lbs ... Cross reference Autolite to NGK: AR3934 = R5671A-8 AR3924 = … WebPart # 4164 Line: ATO 3.8 (5) Write a review Ask a question Select a store to see pricing & availability or search by City & State or Zip: Details Product Information Warranty: 2 Year LIMITED WARRANTY Unit of Measure: Each UPC: # 9100255181 Seat: Flat Thread Size: M12 Hex Size (in): 11/16 Inch Preset Gap (in): 0.030 Inch Preset Gap (mm): 0.8mm WebFeb 14, 2024 · Autolite lists a 5682 copper plug in their parts finder for our machines. That's probably the stock plugs. They also list an iridium plug XP5682. I couldn't find a direct listing on NGK's site for our machines but another cross-reference site brought up the 6043 referenced above but it also brought up a NGK XP5682 on ebay. nrs written reprimand