Couple quick questions... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

treetop_73 · 06-27-2010, 07:11 PM

1985 GMC High Sierra LWB, 350 Engine code M.

What is the correct gap needed on the spark plugs? I've seen .030, .035, and .045 listed on different sites.

Also, What is the difference in all these spark plug wires? They range in price from just the Belden wires from $34.39 to $116.49. I don't plan on buying anything but the minimum but was wondering.

And last, what is the correct temp I should get for the thermostat? I've seem OEM at 180, and 195.

Thanks

06-27-2010, 07:11 PM	#1
treetop_73 Registered User Join Date: Feb 2010 Location: Victorville, CA Posts: 98	Couple quick questions... 1985 GMC High Sierra LWB, 350 Engine code M. What is the correct gap needed on the spark plugs? I've seen .030, .035, and .045 listed on different sites. Also, What is the difference in all these spark plug wires? They range in price from just the Belden wires from $34.39 to $116.49. I don't plan on buying anything but the minimum but was wondering. And last, what is the correct temp I should get for the thermostat? I've seem OEM at 180, and 195. Thanks __________________ '85 GMC High Sierra 2500

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