BBC Spark Plug Reccomendations 781 heads - Chevelle Tech
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  #1  
Old Feb 23rd, 08, 9:02 PM
1968SWBBigblock 1968SWBBigblock is offline
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Default BBC Spark Plug Reccomendations 781 heads

454 + .040, 781 heads with large valves, 10-1 CR, 60204 Voodoo cam, Performer RPM intake, 770 SA Holley carb, 3000 stall, 4.11 gears, street driven

What would be the best choice in plug part numbers?
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  #2  
Old Feb 23rd, 08, 10:16 PM
Bob West Bob West is offline
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Default Re: BBC Spark Plug Reccomendations 781 heads

AC Delco R44T or NGK equivalent
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Old Feb 23rd, 08, 11:02 PM
FRYNTYR FRYNTYR is offline
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Default Re: BBC Spark Plug Reccomendations 781 heads

I think the UR4 or UR5 is the part number for the NGK's. Just off the top of my head. I like the extended tip which I think is the UR4. ??
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Old Feb 24th, 08, 10:09 AM
69XF 69XF is offline
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Default Re: BBC Spark Plug Reccomendations 781 heads

Autolite 24
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  #5  
Old Feb 24th, 08, 1:16 PM
Harold Sutton Harold Sutton is offline
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Default Re: BBC Spark Plug Reccomendations 781 heads

Quote:
Originally Posted by 69XF View Post
Autolite 24
x2. The Autolite is a better plug than either the NGK or the Delco. I had a friend that was knocking the tips off of NGK's in his 17-1 compression race bike. A racing companion told him to go to Autolites and he didn't have any more plug related issues. If you use nitrous never use extended tip plugs.
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Old Feb 24th, 08, 1:24 PM
Bob West Bob West is offline
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Default Re: BBC Spark Plug Reccomendations 781 heads

Use Autolites if you want to change plugs every 20-30 passes Thats my experience with the Autolites and their cut back electrode. I can run two sets of NGK's all year long now, same with Delcos when I had iron heads.
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Old Apr 13th, 08, 10:01 AM
Cable Cable is offline
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Default Re: BBC Spark Plug Reccomendations 781 heads

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Originally Posted by Bob West View Post
Use Autolites if you want to change plugs every 20-30 passes Thats my experience with the Autolites and their cut back electrode. I can run two sets of NGK's all year long now, same with Delcos when I had iron heads.
Was that with the Autolite racing plugs or just the plain ol' copper core ones?

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Old Apr 13th, 08, 10:38 AM
Bob West Bob West is offline
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Default Re: BBC Spark Plug Reccomendations 781 heads

The racing plugs with the cut back electrode, but to their defense I may have been running a plug that was too cold. They just didnt work for me.
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Old Apr 14th, 08, 12:36 AM
Motorhead62 Motorhead62 is offline
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Talking Re: BBC Spark Plug Reccomendations 781 heads

I have good luck with AC Delco's and NGK's also.
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