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Spark plugs for Indy EZ-1 Heads #1380937 02/03/13 04:40 PM 02/03/13 04:40 PM
Joined: Jan 2003 Posts: 4,288 Danville, NH M Mopar_Mike OP master
Mopar_Mike OP master M Joined: Jan 2003 Posts: 4,288 Danville, NH	Just finishing up my build and want to know what you guys are using for spark plugs in your Indy EZ-1 Heads. My engine is a 505 stroker with 11.5.1 compression. Thanks! RS23L7 4-Speed

Re: Spark plugs for Indy EZ-1 Heads [Re: Mopar_Mike] #1380938 02/03/13 04:45 PM 02/03/13 04:45 PM
Joined: May 2004 Posts: 1,151 Las Vegas A afxcoronet super stock
afxcoronet super stock A Joined: May 2004 Posts: 1,151 Las Vegas	I've had luck with the NGK 5671A-8 stock number 4554. Currently running the NGK NGK 5671A-9 stock number 5238 with 13-1 alky motor. Both have worked great for me. Curtis Taking over the World one win light at a time.

Re: Spark plugs for Indy EZ-1 Heads [Re: Mopar_Mike] #1380939 02/03/13 07:22 PM 02/03/13 07:22 PM
Joined: Aug 2012 Posts: 22 New York 1stBxMopar member
1stBxMopar member Joined: Aug 2012 Posts: 22 New York	Autolite- AR3910

Re: Spark plugs for Indy EZ-1 Heads [Re: afxcoronet] #1380940 02/03/13 08:45 PM 02/03/13 08:45 PM
Joined: Nov 2009 Posts: 3,410 Belpre,Ohio C CHAPPER master
CHAPPER master C Joined: Nov 2009 Posts: 3,410 Belpre,Ohio	Quote: I've had luck with the NGK 5671A-8 stock number 4554. Currently running the NGK NGK 5671A-9 stock number 5238 with 13-1 alky motor. Both have worked great for me. Curtis Using the -8 in mine. 493" EZ-1 13.5:1 on gas. Tried the -9 first, but it liked the -8 better. If you like drag racing, support your local track.

Re: Spark plugs for Indy EZ-1 Heads [Re: CHAPPER] #1380941 02/04/13 03:08 AM 02/04/13 03:08 AM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	I am using Autolite AR-3935's on my 10.6 comp 493. Ron Last edited by 383man; 02/04/13 03:11 AM.

Re: Spark plugs for Indy EZ-1 Heads [Re: 383man] #1380942 02/04/13 03:41 AM 02/04/13 03:41 AM
Joined: Dec 2006 Posts: 4,647 aotearoa rebel master
rebel master Joined: Dec 2006 Posts: 4,647 aotearoa	AR3934X 7574575-2012-10-1120.42.20.jpg (572 downloads)

Re: Spark plugs for Indy EZ-1 Heads [Re: rebel] #1380943 02/04/13 03:52 AM 02/04/13 03:52 AM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	Quote: AR3934X Never used that plug as the AR-3935 plug us just one short ground strap. Bet they are not to cheap ?? Ron

Re: Spark plugs for Indy EZ-1 Heads [Re: 383man] #1380944 02/04/13 04:28 AM 02/04/13 04:28 AM
Joined: Dec 2006 Posts: 4,647 aotearoa rebel master
rebel master Joined: Dec 2006 Posts: 4,647 aotearoa	Quote: Quote: AR3934X Never used that plug as the AR-3935 plug us just one short ground strap. Bet they are not to cheap ?? Ron wouldn't know the price Ron. i was part of the test program for these plugs, i have a carton of them. i won't be buying plugs for the next decade. i was using the std AR39.. series plugs before these & these plugs are awesum.

Re: Spark plugs for Indy EZ-1 Heads [Re: 1stBxMopar] #1380945 02/06/13 02:43 AM 02/06/13 02:43 AM
Joined: Dec 2007 Posts: 646 VA. M mosweethemi mopar
mosweethemi mopar M Joined: Dec 2007 Posts: 646 VA.	Hello I see were you ran the AR3910 in your EZ1 heads did they do ok . I have a 500" 440 with the EZ1 heads can you tell me what heat range this plug is good for ? My engine has around 11-1/2-1 will they work ok? Thanks mosweethemi

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