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Author Topic:   Spark Plug's
flanndad#17
Dirt Full Roller

Total posts: 28
posted December 15, 2002 10:31 PM
Looking for every little thing.
Building a forged 406 Chevy with 461 heads, any recommendations on spark plugs out there?
Being a older head I know they take a special thread or something, just can't remember where I read it.

JMillerJr76
Dirt Full Roller

Total posts: 62
posted December 15, 2002 11:30 PM
Alot of guys I know that run stock heads run the Autolite 353 plug for alky, Im not sure which one they run for race gas

Racer X
Dirt Full Roller

Total posts: 63
posted December 16, 2002 05:55 AM
We run the champion J4c on alky and J6 on gas.

RangeRover
Dirt Maniac

Total posts: 174
posted December 16, 2002 12:39 PM
We use AC Delco R43 for the 13/16ths and R43T(Taper) for the smaller 5/8ths style. This is a cold plug.

DMA Racing
Dirt Forum Racer

Total posts: 82
posted December 16, 2002 02:28 PM
i have a 30 over 350 with 461 heads and i use 303 autolite,on gas

[This message has been edited by DMA Racing (edited December 16, 2002).]

Flanndad
Dirt Full Roller

Total posts: 49
posted December 16, 2002 03:11 PM
Thanks for the input, I haven't seen much on here on spark plugs.
This should give me some choices to try.

AlanP2
Dirt Roller

Total posts: 5
posted December 16, 2002 07:33 PM
We run the 353 on the camel hump heads and 23 on the bowtie heads on our mod

ray14
Dirt Full Roller

Total posts: 67
posted December 16, 2002 11:15 PM
i run the ac delco r45s these are the hottest plug ac makes they use to make a r46 but not anymore. who would put autolites in a chevy ford recomends autolites for there engines lol just kidding i dont like fords,no punt intended

fastrack1
Dirt Full Roller

Total posts: 73
posted December 18, 2002 07:52 PM
U MAY THINK THIS IS NOT TRUE BUT AUTOLITE IS A BETTER PLUG FOR RACING I HAVE RAN BOTH AND CAN ACTUALLY TELL THE DIFFERNCE AND YES THE 303 IS A GOOD CHOICE AND YES THIS IS IN A CHEVY AND ALSO MOST NASCAR TEAMS RUN AUTOLITES

flanndad#17
Dirt Full Roller

Total posts: 28
posted December 18, 2002 08:09 PM
I have one more question, what gap would be a good starting point?

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