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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: chevythunder on September 04, 2006, 01:09:00 AM

Title: Flowtech afterburner headers/spark plug problems
Post by: chevythunder on September 04, 2006, 01:09:00 AM
i installed these headers the other day on my truck..i went to put the spark plugs in today and when i try and thread in the one farthest back on the drivers side i cant thread it in straight because it hits the header tube for that cylinder...i had an old accel plug (the short ones) layin around so i
tried that and i could thread it in fine but when i put the wire on the boot makes contact with the header tube....i dont think they make a shorter spark plug than the accel one i tried....anybody here have these headers? any suggestions are appriciated..

Title: Re: Flowtech afterburner headers/spark plug problems
Post by: tlynde on September 04, 2006, 12:30:00 PM
I had the same problem with my Hedman's.
you can buy at most auto-parts stores a thermal boot protector that fit's over the plugwire and boot mine touch the header and have for 2 years with no more than a discoloring of the thermal boot.

Title: Re: Flowtech afterburner headers/spark plug problems
Post by: 75 C20 on September 05, 2006, 07:48:00 PM
Yeah my summit brand (cheapest ones i could get) have the same thing- i didnt worry bout it and nutthins metled off yet and its been a year or so.

Title: Re: Flowtech afterburner headers/spark plug problems
Post by: RSBAD454 on September 06, 2006, 07:46:00 AM
I concur.....use the thermal protective sleeves. I would also suggest a 135 degree boots as opposed to the 90 degree.

Toys are my game

Title: headers and plugs
Post by: 1976Scottsdale on September 07, 2006, 11:10:00 PM
Hooker headers or Dynomax Std. series seemed to do the best for me.  Dynomax just needed a wrench, but it wasn't too bad.