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Shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits
GM Heritage factory kit — 1983 Chevrolet El Camino, p.5.GM Heritage factory kit — 1984 Chevrolet El Camino, p.5.GM Heritage factory kit — 1985 Chevrolet El Camino, p.11.GM Heritage factory kit — 1986 Chevrolet El Camino, p.5.GM Heritage factory kit — 1987 Chevrolet El Camino, p.45.
NA5 Factory-verified
Also described as Emissions, standard (federal)Emission system, standardEmission system, federal, Tier 0
Also documented for BuickChevroletOldsmobilePontiac
Documented applications
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printed in the power team chart headings; shared square-body platform code; cited from the Chevrolet Blazer kit
GM Heritage factory kit — 1983 Chevrolet Blazer, p.4.GM Heritage factory kit — 1984 Chevrolet Blazer RV Full Size, p.12.GM Heritage factory kit — 1985 Chevrolet Blazer RV Full Size, p.6.GM Heritage factory kit — 1986 Chevrolet Blazer, p.6.
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the other joint pages print NAS or name NA5 only in exclusion remarks, so only 1986 and 1989 are claimed; shared S/T platform code; cited from the joint S-10/15 Blazer/Jimmy pages of the S-10 Blazer kit
GM Heritage factory kit — 1986 Chevrolet S 10 Blazer, p.6.GM Heritage factory kit — 1989 Chevrolet Blazer, p.15.
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; printed in the power team chart headings; years follow the dates printed on the pages, not the kit file names (the 1988 kit's page 24 is dated February 1987, so it supports 1987, not 1988); 1986 from the 1986 pages in the kit file named for the prior model year; shared M-body code; cited from the joint Astro/Safari pages of the Astro kits.
GM Heritage factory kit — 1985 Chevrolet Astro Van, p.4.GM Heritage factory kit — 1985 Chevrolet Astro Van, p.24.GM Heritage factory kit — 1987 Chevrolet Astro Van, p.12.GM Heritage factory kit — 1988 Chevrolet Astro Van, p.24.
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shared platform code; cited from the square-body C/K pickup kits; 1983, 1984, 1986 and 1987 from the power team blocks headed with NA5 standard emissions; 1985 from the roof marker lamp requirement remark
GM Heritage factory kit — 1983 Chevrolet Truck, p.13.GM Heritage factory kit — 1984 Chevrolet Truck, p.21.GM Heritage factory kit — 1985 Chevrolet Truck, p.43.GM Heritage factory kit — 1986 Chevrolet Truck, p.20.GM Heritage factory kit — 1987 Chevrolet Truck, p.43.
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1984 from the MM5 and C3A companion remarks (the own line prints NAS); shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits
GM Heritage factory kit — 1983 Chevrolet S 10, p.38.GM Heritage factory kit — 1984 Chevrolet S 10, p.14.GM Heritage factory kit — 1985 Chevrolet S 10, p.20.GM Heritage factory kit — 1986 Chevrolet S 10, p.8.GM Heritage factory kit — 1987 Chevrolet S 10, p.20.GM Heritage factory kit — 1988 Chevrolet S 10, p.30.
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the kits print it as standard emission equipment; 1984, 1987 and 1988 from the power team chart headings; the 1983 pages print NAS on the option line and power team heading and name NA5 otherwise only in a note on NA6 availability, so 1983 is left out; shared square-body platform code; cited from the Chevrolet Suburban kit
GM Heritage factory kit — 1984 Chevrolet Suburban, p.9.GM Heritage factory kit — 1985 Chevrolet Suburban, p.15.GM Heritage factory kit — 1986 Chevrolet Suburban, p.15.GM Heritage factory kit — 1987 Chevrolet Suburban, p.15.GM Heritage factory kit — 1988 Chevrolet Suburban, p.9.
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standard emission equipment; 1987 and 1988 from the power team block headings; the 1988 option page prints NAS; shared G-van platform code; cited from the Chevrolet G-Van kit
GM Heritage factory kit — 1983 Chevrolet Vandura, p.12.GM Heritage factory kit — 1984 Chevrolet G Van, p.14.GM Heritage factory kit — 1986 Chevrolet G Van, p.21.GM Heritage factory kit — 1987 Chevrolet G Van, p.14.GM Heritage factory kit — 1988 Chevrolet Vandura, p.10.GM Heritage factory kit — 1989 Chevrolet G Van, p.17.
This page aggregates every documented appearance of NA5 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.