1994 k1500 5.7 spark plug wire loom
- Thread starter Erin
- Start date
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For OE-style, you will need 4 of the 4-wire bracket mount that route behind the valve cover near the firewall. Dorman has them as part number 40295. 4 of the 2-wire vertical holders just above the spark plugs, Napa PN 7353594. And four of the 2 wire horizontal holders, Autozone has them as PN WH1002. I could never find one kit that had them all, so you kind of have to mix and match.
454cid
Sooper Pooper
Easy for a SBC, as thats what all the companies design for.
If you're looking at aftermarket, I like some of the Moroso offerings. Also there is a company that specializes in plastic.... "Made for You Products" that has some nice stuff.
Disclaimer: I have purchased none of what I suggested, but did do some looking for my Buick, and 454.
If you're looking at aftermarket, I like some of the Moroso offerings. Also there is a company that specializes in plastic.... "Made for You Products" that has some nice stuff.
Disclaimer: I have purchased none of what I suggested, but did do some looking for my Buick, and 454.
Looks functional.
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There's a thousand ways to route the plug wires.
MAKE SURE that #5 and #7 plug wires don't run parallel within 1/2 inch of each other--greater separation is better.
If 5 and 7 plug wires are routed parallel to each other, and too close together, they can inductively cross-fire. When the spark is intended for #5, #7 has a full fuel-air mix in the cylinder, but no compression. It takes little voltage to blow a spark across #7 spark plug gap--meaning it fires 90 degrees early, trying to turn the crank the wrong direction. Evil things happen.
MAKE SURE that #5 and #7 plug wires don't run parallel within 1/2 inch of each other--greater separation is better.
If 5 and 7 plug wires are routed parallel to each other, and too close together, they can inductively cross-fire. When the spark is intended for #5, #7 has a full fuel-air mix in the cylinder, but no compression. It takes little voltage to blow a spark across #7 spark plug gap--meaning it fires 90 degrees early, trying to turn the crank the wrong direction. Evil things happen.
^^^ That scares me. #5 and #7 routed parallel, tied together with almost no separation.
The dealer did that. I’m clueless when it comes to that’s stuff, but I will be familiarizing myself with it now.
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