FE Power Forums
FE Power Forums => FE Technical Forum => Topic started by: unclewill on January 11, 2017, 12:31:59 PM
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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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If it's around 10-10.5:1 compression, I'd run an Autolite 3924.
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10.5:1. I assume they will fit the heads?
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Yes, I wouldn't recommend a plug that wouldn't fit.
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;D ;D ;D
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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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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.
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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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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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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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Just a little info on plug choices.
(http://i1083.photobucket.com/albums/j387/fekbmax/20170111_184654_zpshlcgwyvn.png) (http://s1083.photobucket.com/user/fekbmax/media/20170111_184654_zpshlcgwyvn.png.html)
(http://i1083.photobucket.com/albums/j387/fekbmax/20170111_185004_zpsdiaonpki.png) (http://s1083.photobucket.com/user/fekbmax/media/20170111_185004_zpsdiaonpki.png.html)
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These are the best.
http://kalecoauto.com/index.php?main_page=product_info&products_id=30
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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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Drew, those plugs work well with these wires:
http://kalecoauto.com/index.php?main_page=product_info&cPath=9&products_id=27&zenid=6aCXfqS2tbP09BHHfSNj50
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Dam,
Now I need to place a second order..
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Be very careful regarding items from KaleCoAuto. Their Roundtuit, for example, is far more complex than is necessary. I have a local source for them. They're wood, smaller, smooth to the touch, and have instructions imprinted on them. They are not only designated as roundtuits, but also as wooden nickels (on the other side). They're far more desirable, and they give them away!
You can buy all manner of fasteners in the same place!!
KS
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Ok, after perusing the KaleCoAuto sight, I have found the blinker fluid and Jupiter belts I was too embarrassed to ask you guys about. Many thanks!
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So everybody being so helpful here would somebody know any source of piston return spring.Ebey link would be nice.
Have any manufacturer made any rpm kits for piston return springs.
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I used to buy them from the same place I bought my cans of overspray from. I'll see if I can dig it up.
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I use the autolite 3924 s in my bbm heads , and unclewill ask away - thats what the forum is for and i think we all learn something every day .. Bud
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BBM for the street.......on pump gas.......NGK #BKR6E. The best reasonably priced plug I have found for pump gas, and readily available.
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Blair I am guessing that the part number should be BkR6ek.
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BBM for the street.......on pump gas.......NGK #BKR6E. The best reasonably priced plug I have found for pump gas, and readily available.
What would you gap the NGK or the Autolite 3924 plugs at ?
Red
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I gap all my plugs at 0.035 to 0.038. I have never seen a power increase on the dyno by running a larger plug gap.
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Same here. I actually run most of the AR plugs out of the box, just checking to make sure they weren't damaged in shipping.