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Re: Unladen weight 85 K20
Quote:
Originally Posted by THI
In the 1980's the 3/4-ton 4WD was available in Light Duty (6,600 GVW) and Heavy Duty (8,600 GVW) versions - big difference was the rear springs and emissions. Over 8,500 GVW's were Heavy Duty Emissions. The 2WD versions were 7,200 GVW and 8,600 GVW
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From what I can tell by scanning the GMheritagecenter vehicle brochure for 1987(I assume the others are similar), the difference between a 6600 and a 8600 v20 was whether it had the "c6p" package or not.
The "c6p" package included thicker steel across the entire chassis, different front and rear brakes, and likely different springs.
My c6p truck had a catalytic converter, and I'm reasonably certain it was not a California truck. So I'm not sure how much difference there were in emissions between c6p and non-c6p trucks.
For what it's worth, every k20 or v20 truck that I've run across here in Virginia has had the c6p 8600-gvwr option. It appears that the 6600-gvwr trucks are a bit less common.
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1987 C6P V20 truck, 2010 LMG 5.3, AFM delete, 2010 Camaro exhaust manifolds, 1997 nv4500, 1991 np241c, hydroboost, 2005 14bff axle & driveshaft, drop-n-lock gooseneck, 4.10 gears, stock suspension, rims, and tires. Still a work in progress. Any questions or suggestions are welcome!
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