Build Thread...1979 GMC 1 Ton Camper Special - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

75gmck25 · 01-08-2008, 07:39 AM

For my GMPP 350/290 hp crate engine (same vintage engine as your truck), they recommend R45TS plugs, gapped to .045 For HEI Distributor.

For the stock Goodwrench 350 crate engine they recommend R44TS plugs, gapped to .045 For HEI Distributor.

It sounds like .045 would be right for your engine.

Bruce

Ivan D. · 01-08-2008, 09:22 AM

.045 sounds about right, you can go higher if you run a hotter coil and good wires, but for a stocker .045 is what you want. Also the difference between the R45TS and the R44TS plugs is the heat range, forgot which is which tho - I know with my engine burning oil I tried both and none worked good, so I put in some NGK hot plugs and voila, no more fouling... something to consider if you're burning a bit of oil.

Fraser Beatty · 01-11-2008, 04:13 PM

Well, this project has evolved from simply doing the body work and fixing the odd thing here or there into an all-out restoration. The truck is torn apart, and there are piles of parts everywhere. Looks like I am going to be in for the long haul on this one!

01-08-2008, 07:39 AM	#1
75gmck25 Registered User Join Date: Nov 2007 Location: San Antonio, TX Posts: 28	Re: Build Thread...1979 GMC 1 Ton Camper Special For my GMPP 350/290 hp crate engine (same vintage engine as your truck), they recommend R45TS plugs, gapped to .045 For HEI Distributor. For the stock Goodwrench 350 crate engine they recommend R44TS plugs, gapped to .045 For HEI Distributor. It sounds like .045 would be right for your engine. Bruce

01-08-2008, 09:22 AM	#2
Ivan D. glamoros piece o' lowlife Join Date: Mar 2007 Location: Redford, MI Posts: 1,164	Re: Build Thread...1979 GMC 1 Ton Camper Special .045 sounds about right, you can go higher if you run a hotter coil and good wires, but for a stocker .045 is what you want. Also the difference between the R45TS and the R44TS plugs is the heat range, forgot which is which tho - I know with my engine burning oil I tried both and none worked good, so I put in some NGK hot plugs and voila, no more fouling... something to consider if you're burning a bit of oil. __________________ The more I drink, the more I drink, the more I drink... diesel, reg cab, long bed, 4 across the rear, single stack, wooden stakes, and lotsa lights - the Hay Express

01-11-2008, 04:13 PM	#3
Fraser Beatty Registered User Join Date: Sep 2007 Location: Sarnia, Ontario Posts: 571	Re: Build Thread...1979 GMC 1 Ton Camper Special Well, this project has evolved from simply doing the body work and fixing the odd thing here or there into an all-out restoration. The truck is torn apart, and there are piles of parts everywhere. Looks like I am going to be in for the long haul on this one! __________________ 1961 GMC 930- SOLD 1979 GMC C35 Single Wheel Camper Special- SOLD 1980 GMC C25 Camper Special- SOLD 1983 Chevrolet C10- SOLD 1983 Chevrolet Camaro- SOLD 1985 GMC C1500 (Dad's truck) 1985 GMC C3500 Crew Cab Dually- TRADED FOR 61 GMC 1997 Dodge Ram 1500 V6 Shortbox- Daily Driver



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