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Author
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Topic: Which spark plugs
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shoe
Gearhead Posts: 227
From: midwest
Registered: Feb 2001
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posted 05-06-2002 09:39 PM
   
I got a bone stock ,rebuilt with only 4K miles on it, 200 HP 289 in a 67 Mustang.
My book calls for a BF 42 plug.Which I can no longer get. I've tried a Autolite 45 plug & I'm not really happy with them. What would be a good plug for my application. It is an automatic. What has worked for other guys? Please let me know.Now remember this is a STOCK motor. Rob
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T5owner
Gearhead Posts: 677
From: Germany
Registered: Apr 2000
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posted 05-07-2002 03:02 PM
A club fellow, who has had his 'stang over 20 years, working in a garage and having done extended tests for getting vintage 'stangs approved with catalytic exhaust systems, says, that after testing all brands, he recommends NGK spark plugs.
I have heard that Motorcraft are as good as their name might imply on other forums.
I have used Motorcraft BF32 very often with no problem, but I am not very often in higher rpms, so they do their job on a "stock" car.
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65coupei6
Gearhead Posts: 451
From: S.F., CA
Registered: May 2000
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posted 05-07-2002 04:49 PM
I also use NGK
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SteveLaRiviere
Administrator Posts: 42139
From: Saco, Maine
Registered: May 99
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posted 05-07-2002 06:33 PM
I prefer Autolites, but as long as they aren't Champions or Split Fires or any other whiz-bangs plugs, I'll use them. ------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
MCA Member # 47773 "Doubt is not a pleasant condition, but certainty is absurd."
- Voltaire
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PONYMAN
Gearhead Posts: 347
From: Ardmore, Ok. USA
Registered: Jul 99
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posted 05-07-2002 09:44 PM
NO CHAMPIONS I had them in my wife's MGB. The car had a high speed miss in fourth gear going up a hill or incline. I tried points, carb tuing and rebuilt, plus wires, and everything else i could think of. Finally changed the new chanpions out and put in Bosch. Guess the miss disappeared. Who would have thought. I will never run Chanpions in anything I own again. I run Motorcrafts in my 351C stock engine, and have had no problems with them.------------------
72 Mach 1 351C
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Larry Jennings
Gearhead Posts: 540
From: Redwood City, Ca. USA
Registered: Apr 2000
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posted 05-07-2002 09:54 PM
Rob! Why come you don't like em, the Autolites? Are they doing something bad? Or are they not doing something good? I'm just curious.------------------
Of all my relations I like sex best.
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shoe
Gearhead Posts: 227
From: midwest
Registered: Feb 2001
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posted 05-07-2002 11:50 PM
Didn't say I didn't like them.My Chiltons calls for a BF42. Plus years ago I understood the difference between a BR42 & BF etc. The problem is I no longer can get a BF42 and would like to know which one replaces (and works well) the BF42 that the book says I should use. If another brand works I need a number to know what to get.I actually prefer the Autolite plugs but not sure if the Autolite 45's (which I have in the car now & need replacing) were the right ones to replace the BF 42 plug, Rob
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Hell_Fish
Gearhead Posts: 860
From: Austin, TX.
Registered: May 2002
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posted 05-08-2002 10:02 AM
I just put a set of the Autolites 45's in my wifes 302. Its not what I was hoping for. Autolite is no longer made by Ford, and I guess they are aiming for a larger market. I have Motorcraft in my 351W and like them a lot.------------------
Dustin C
56 F-100
Mech. for wifes 69 Mustang coupe
65 Plymouth Barracuda
70 Dodge Swinger
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