Spark Plugs?

[Dstryr]

Looking at buying them so everything comes at one time.

My heads call for 14MM .460" reach 5/8 Hex Tappered Seat

Well I go to jegs and it seems there are like 8 different part numbers for these and they all look exactly the same via specs?

Which ones do I get?

http://www.jegs.com/i/Fram+&+Autolite/410/AR12/10002/-1#
http://www.jegs.com/i/Fram+&+Autolite/410/AR132/10002/-1#
http://www.jegs.com/i/Fram+&+Autolite/410/AR133/10002/-1#
http://www.jegs.com/i/Fram+&+Autolite/410/AR134/10002/-1
http://www.jegs.com/i/Fram+&+Autolite/410/AR135/10002/-1

 

[Damon]

They differ by heat range. The lower the number, the "colder" the plug. The higher the number, the "hotter" the plug. That will be determined by your application, but starting somewhere in the middle (134s) would probably be a good starting point.

Those a Race plugs, by the way. They are side-gapped and my experience has been that they wear out nightmarishly fast in street driving. If you want a good street plug, try the Autolite 24s. They're my go-to plugs for street applications that use the plug style you describe. Plus they are a semi-shorty design that clears most headers.

 

[Nate81camaro]

Those a Race plugs, by the way. They are side-gapped and my experience has been that they wear out nightmarishly fast in street driving. If you want a good street plug, try the Autolite 24s. They're my go-to plugs for street applications that use the plug style you describe. Plus they are a semi-shorty design that clears most headers.

Sort of like the NGKs? I had those and they sucked (for me at least). Replaced them with a set of autolite #26s and all has been well. That'll teach me to spend alot on a plug! LOL

I'm running Accel's shorty plug now to help out with clearance (cheap headers).

 

[yobin67]

I switched to NGK plugs a while back and will never go to anything else.They are easy to read and I get them for 1.98 at the local Advance Auto.Remember with NGK the higher the number,the colder the plug.I run 7's on the street and 8's with the NOS at the track.

 

[Nate81camaro]

^^Not bad!

I'd have to look to see which plug I bought...if I even kept it.

 

[camaronut79]

here you go this is a good chart to cross check when want to try a new plug maker http://www.dragstuff.com/techarticles/spark-plug-cross-reference.html it also tells you at the bottom how to read their heat ranges.