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Author Topic:   441 heads which plugs
Yipee Ki Ay
Dirt Roller

Total posts: 6
posted March 22, 2001 09:49 PM
What plugs would ya'll recomend? 350ci 10-1 flattops zero deck with 441 heads on race gas. Any info would be of great help. Thanx

Earl Parker II
Dirt Roller

Total posts: 17
posted March 23, 2001 07:30 AM
If you can post the following information it will help greatly: the reach (depth) of the threads in the head, the diameter (in mm) of the spark plug hole (you can get this measurement from a plug), the size of the chamber (in cc), the size of the racetrack and the minimum/maximum rpm you see in a typical lap.

I'll check back in a day or so.

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Earl Parker II
www.parkercarburetion.com
704.482.7588

Yipee Ki Ay
Dirt Roller

Total posts: 6
posted March 23, 2001 10:12 PM
Thank you for responding to my question Mr. Parker, I guess I should have included this information in my original post. 3/8 in. reach, 1**m thread,70cc chambers (before being milled for flatness) Holley 350 carb and a factory high performance 4BBL intake. The track I race is a 1/2 mi. dirt 14 degree banking dry, slick. I average 3700-6500 rpm. I hope this helps. Thank you

[This message has been edited by Yipee Ki Ay (edited March 23, 2001).]

Yipee Ki Ay
Dirt Roller

Total posts: 6
posted March 23, 2001 10:14 PM
Thats is 14 millimeter thread. Sorry for the messup

[This message has been edited by Yipee Ki Ay (edited March 23, 2001).]

Earl Parker II
Dirt Roller

Total posts: 17
posted March 24, 2001 09:34 AM
There is a Champion plug, the J63Y, that is specifically designed for short track racing and it will fit your head. It's a 63 heat range, which is appropriate for what you're doing, has a projected core-nose, which will help throttle response and acceleration and has a fine center electrode, meaning the voltage requirements of the plug are relatively low.

I realize that a lot of racers out there have had bad experiences with Champion plugs in the past but this plug should work very well with your combination. To my knowledge no other plug manufacturer has anything like it. If you absolutely can't find the J63Y, you can substitute the J63YC, but would find the J63Y if I could.

As for distributors, I would go to the Federal Mogul site (they now own Champion), click on the Champion link and see if they have a list of race plug distributors. I believe that BSR Products, Inc. in Charlotte, NC carries Champion plugs- they should be willing to get some for you.

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Earl Parker II www.parkercarburetion.com
704.482.7588

[This message has been edited by Earl Parker II (edited March 24, 2001).]

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