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Author Topic: Spark Plugs for BBM heads?  (Read 9413 times)

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unclewill

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Spark Plugs for BBM heads?
« on: January 11, 2017, 12:31:59 PM »
I need a spark plug recommendation for my 482 running BBM heads, Comp292H, Edelbrock RPM, 850 DP, 6200 redline, 3800lb 4sp street car.
Thanks in advance!
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1969 Ford Cobra, 482 side oiler, BBM aluminum heads, FiTech EFI, Edelbrock 7105, Comp 292H, CR 4 speed, 9", 3.50

blykins

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Re: Spark Plugs for BBM heads?
« Reply #1 on: January 11, 2017, 01:21:53 PM »
If it's around 10-10.5:1 compression, I'd run an Autolite 3924.
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Brent Lykins
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unclewill

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Re: Spark Plugs for BBM heads?
« Reply #2 on: January 11, 2017, 01:36:29 PM »
10.5:1.  I assume they will fit the heads?
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1969 Ford Cobra, 482 side oiler, BBM aluminum heads, FiTech EFI, Edelbrock 7105, Comp 292H, CR 4 speed, 9", 3.50

blykins

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Re: Spark Plugs for BBM heads?
« Reply #3 on: January 11, 2017, 01:39:46 PM »
Yes, I wouldn't recommend a plug that wouldn't fit. 
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Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
Instagram:  brentlykinsmotorsports
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jayb

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Re: Spark Plugs for BBM heads?
« Reply #4 on: January 11, 2017, 02:29:16 PM »
 ;D ;D ;D
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Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

unclewill

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Re: Spark Plugs for BBM heads?
« Reply #5 on: January 11, 2017, 03:48:29 PM »
I had to ask because I have no experience with these BBM heads and I thought I read somewhere that they require a different plug than the factory heads.  I'm trying to fatten up my order from Summit to get free shipping and I hate to return things via mail order.  Plus, I'm am idiot!   :P
Thanks for the advice!
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1969 Ford Cobra, 482 side oiler, BBM aluminum heads, FiTech EFI, Edelbrock 7105, Comp 292H, CR 4 speed, 9", 3.50

thatdarncat

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Re: Spark Plugs for BBM heads?
« Reply #6 on: January 11, 2017, 04:31:06 PM »
Quote from: unclewill on January 11, 2017, 03:48:29 PM
I had to ask because I have no experience with these BBM heads and I thought I read somewhere that they require a different plug than the factory heads.

You are correct, the factory Ford cast iron FE cylinder heads use a 18mm thread spark plug. I believe most, if not all, aftermarket aluminum FE cylinder heads ( like BBM, Edelbrock, etc. ) use a 14mm thread spark plug. Since the 14mm spark plug is common on the aftermarket heads I think the builders are just used to that now, nothing wrong with the question. There are a lot more varieties of plugs available in the 14mm size.
« Last Edit: January 11, 2017, 04:50:47 PM by thatdarncat »
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Kevin Rolph

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cammerfe

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Re: Spark Plugs for BBM heads?
« Reply #7 on: January 11, 2017, 05:25:42 PM »
Comment based on 'way-back-when'. '32' heat range was the thing to use on any street-driven performance Ford. The regular stuff used an '82'. And a '22' was good for about ten street miles before it started to foul noticeably. There are easily-found charts that give a cross-reference that'll give you a start. And keep in mind that improvements in plugs will be likely to offer a broader operational heat range.

KS
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blykins

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Re: Spark Plugs for BBM heads?
« Reply #8 on: January 11, 2017, 05:44:29 PM »
Quote from: unclewill on January 11, 2017, 03:48:29 PM
I had to ask because I have no experience with these BBM heads and I thought I read somewhere that they require a different plug than the factory heads.  I'm trying to fatten up my order from Summit to get free shipping and I hate to return things via mail order.  Plus, I'm am idiot!   :P
Thanks for the advice!

Didn't mean to come across as snippy as I did.  Sorry for that. 
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Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
Instagram:  brentlykinsmotorsports
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unclewill

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Re: Spark Plugs for BBM heads?
« Reply #9 on: January 11, 2017, 06:18:03 PM »
No problem, getting answers from a professional engine builder with a reputation as good as yours is great, and I appreciate it!
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1969 Ford Cobra, 482 side oiler, BBM aluminum heads, FiTech EFI, Edelbrock 7105, Comp 292H, CR 4 speed, 9", 3.50

fekbmax

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Re: Spark Plugs for BBM heads?
« Reply #10 on: January 11, 2017, 06:54:52 PM »
Just a little info on plug choices. 



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Keith.  KB MAX Racing.

Drew Pojedinec

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Re: Spark Plugs for BBM heads?
« Reply #11 on: January 11, 2017, 07:34:31 PM »
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unclewill

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Re: Spark Plugs for BBM heads?
« Reply #12 on: January 11, 2017, 10:02:17 PM »
I used to date a gal whose father had a spark plug collection.  He had hundreds of them, all different designs, many with literature making all sorts of claims of their superiority to "standard" plugs.  Some of them were over a hundred years old.  It's always fun to see the latest, greatest spark plug design but, in the end, I'll stick with conventional plugs.  Cheers!
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1969 Ford Cobra, 482 side oiler, BBM aluminum heads, FiTech EFI, Edelbrock 7105, Comp 292H, CR 4 speed, 9", 3.50

blykins

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Re: Spark Plugs for BBM heads?
« Reply #13 on: January 12, 2017, 06:51:44 AM »
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Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
Instagram:  brentlykinsmotorsports
YouTube:  Lykins Motorsports

fekbmax

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Re: Spark Plugs for BBM heads?
« Reply #14 on: January 12, 2017, 06:57:58 AM »
Dam,
Now I need to place a second order..
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Keith.  KB MAX Racing.
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