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73-87 Chevy _ GMC Trucks => Performance => Topic started by: Fairlane514 on April 16, 2012, 06:31:57 am

Title: Spark plug wires with headers
Post by: Fairlane514 on April 16, 2012, 06:31:57 am

I am installing the Hedman shortys on a 350. My question is, which angle should I use on the spark plug boot?  I dont have the headers yet, and I want to order everything at once. I figure its either 45 degree or straight.

Thanks!

Title: Re: Spark plug wires with headers
Post by: Irish_Alley on April 16, 2012, 10:23:54 am

i have 90s on all of mine with headers

Title: Re: Spark plug wires with headers
Post by: bd on April 16, 2012, 11:03:19 am

Keep the wires away from exhaust heat as much as possible.  Like Irish, I use 90* boots, and then insulate them with DEI 8" Nomex sleeves.

Title: Re: Spark plug wires with headers
Post by: bake74 on April 17, 2012, 05:58:49 am

Quote from: bd on April 16, 2012, 11:03:19 am

Keep the wires away from exhaust heat as much as possible.  Like Irish, I use 90* boots, and then insulate them with DEI 8" Nomex sleeves.

     Ha, I learned the hard way that this for me is the best way to go.

Title: Re: Spark plug wires with headers
Post by: Blazin on May 03, 2012, 10:55:21 pm

I have dinged the primary pipes in on many pairs of headers to make room for plug wire boots.

Title: Re: Spark plug wires with headers
Post by: codyC10kid on May 03, 2012, 10:59:15 pm

I have 90* on my headers

Title: Re: Spark plug wires with headers
Post by: Fairlane514 on May 07, 2012, 05:44:00 pm

I used 90's.

The is a plug wire by Accel I have used a couple of times. They call them Ferro-spiral 9000, the spark plug boot will withstand 1000 degree heat as close as 1/2.

They are not bulky, they are silver in color and look normal otherwise.

Title: Re: Spark plug wires with headers
Post by: VileZambonie on May 07, 2012, 05:47:35 pm

Most modern headers have no clearance issues with 90°s Nevertheless get a custom build set.