Base Corvette Sport Coupe (350ci 180hp L48) — coupe only, no convertible

Years 1973–77 Models 1 Factory citations 5

Also described as Base Corvette Sport Coupe (350ci 190hp L48, wide-ratio 4-spd)Base Corvette Sport Coupe (350ci 195hp L48)Base Corvette Sport Coupe (350ci 165hp L48)Base Corvette Sport Coupe (350ci 180hp L48)

Documented applications

Corvette (C3)

1973 Factory-verified

$5,561.50; 25,521 built (factory price schedule p.24 confirms $5,561.50)

GM Heritage factory kit — 1973 Chevrolet Corvette, p.24.
1974 Factory-verified

$6,001.50; 32,028 built

GM Heritage factory kit — 1974 Chevrolet Corvette, p.7.
1975 Factory-verified

$6,810.10; 33,836 built (factory kit resolves: price schedule p.28 lists the base coupe at $6,810.10 — CAC's $6,797.10 is not what the factory schedule shows)

GM Heritage factory kit — 1975 Chevrolet Corvette, p.28.
1976 Factory-verified

$7,604.85; 46,558 built (corvettestory shows $6,810.10, an apparent carryover of the 1975 price)

GM Heritage factory kit — 1976 Chevrolet Corvette, p.18.
1977 Factory-verified

$8,647.65; 49,213 built (kit summary p.109: 49,213)

GM Heritage factory kit — 1977 Chevrolet Corvette, p.109.

This page aggregates every documented appearance of 1YZ37 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.