Spark Plugs and Wires Questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72step · 03-08-2009, 01:30 PM

What's a good spark plug and wire to run on a stout 327 with a mallory Unilite ignition system? I'm looking to place an order from Jegs and I like the Jegs 8.5 MM ultra power wires. They seem like a good wire and are a decent price. How about plugs? I used to have pretty good luck with the Champion Truck plugs, but they don't seem to make them anymore. What's an excellent plug now a days? Thanks

72step · 03-08-2009, 01:34 PM

Oh, and what wires are better for neatness/ease of use. The over valve cover or under header? I should remember all this, but I haven't messed with my truck in a long time. It's time to dust her off and get her tip top shape again. Thanks.

ed2552 · 03-08-2009, 02:07 PM

IMO, on older vehicles, unless you're over 400 HP, as long as it fits and lights the fire, it's just fine. Your local NAPA should have the plug that fits.

72step · 03-08-2009, 02:33 PM

How about the wires? Under header or over valve cover? Also do I need a special coil wire for the mallory big square coil?

ed2552 · 03-08-2009, 02:39 PM

I'd go over VC. Less chance of melting them.

03-08-2009, 01:30 PM	#1
72step Registered User Join Date: Nov 2000 Location: chimayo, nm, usa Posts: 898	Spark Plugs and Wires Questions What's a good spark plug and wire to run on a stout 327 with a mallory Unilite ignition system? I'm looking to place an order from Jegs and I like the Jegs 8.5 MM ultra power wires. They seem like a good wire and are a decent price. How about plugs? I used to have pretty good luck with the Champion Truck plugs, but they don't seem to make them anymore. What's an excellent plug now a days? Thanks

03-08-2009, 01:34 PM	#2
72step Registered User Join Date: Nov 2000 Location: chimayo, nm, usa Posts: 898	Re: Spark Plugs and Wires Questions Oh, and what wires are better for neatness/ease of use. The over valve cover or under header? I should remember all this, but I haven't messed with my truck in a long time. It's time to dust her off and get her tip top shape again. Thanks.

03-08-2009, 02:07 PM	#3
ed2552 Registered User Join Date: Jan 2007 Location: Charles City IA Posts: 1,626	Re: Spark Plugs and Wires Questions IMO, on older vehicles, unless you're over 400 HP, as long as it fits and lights the fire, it's just fine. Your local NAPA should have the plug that fits. __________________ '67 C20, Under the Knife!, LWB, Eaton HO-52, Rear Coil Springs 72' GMC C2500, 350, TH400(?), Dana 60 '67 K10 4-spd., 305, SM465, Dana 44, 12 Bolt, RUST! '65 C60 292, 4 spd, 2 spd Rearend, 15' Grain Box, MINT! 09 Yukon Denali 82k Miles 6.2L/6A

03-08-2009, 02:33 PM	#4
72step Registered User Join Date: Nov 2000 Location: chimayo, nm, usa Posts: 898	Re: Spark Plugs and Wires Questions How about the wires? Under header or over valve cover? Also do I need a special coil wire for the mallory big square coil?

03-08-2009, 02:39 PM	#5
ed2552 Registered User Join Date: Jan 2007 Location: Charles City IA Posts: 1,626	Re: Spark Plugs and Wires Questions I'd go over VC. Less chance of melting them. __________________ '67 C20, Under the Knife!, LWB, Eaton HO-52, Rear Coil Springs 72' GMC C2500, 350, TH400(?), Dana 60 '67 K10 4-spd., 305, SM465, Dana 44, 12 Bolt, RUST! '65 C60 292, 4 spd, 2 spd Rearend, 15' Grain Box, MINT! 09 Yukon Denali 82k Miles 6.2L/6A



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