Chevrolet 98ci Engine Specs

Bore, stroke, displacement and compression for all 4 Chevrolet 98ci engines, compared side by side. Plus rod ratio and head specs where published.

At a glance

Displacement	98 ci
Cylinders	4
Advertised power	60–74 hp
Years	1976–1987

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
LY5	98 ci	—	—	60–63
LW5	98 ci	—	—	68
L17	98 ci	—	—	65–70
L18	98 ci	—	—	74

Factory cars with a Chevrolet 98ci

• Chevrolet Chevette: 1976, LY5, 60 hp; 1977, LY5, 63 hp; 1978, LY5, 63 hp; 1978, LW5, 68 hp; 1979, L17, 70 hp; 1979, L18, 74 hp; 1980, L17, 70 hp; 1980, L18, 74 hp; 1981, L17, 70 hp; 1982, L17, 65 hp; 1983, L17, 65 hp; 1985, L17, 65 hp; 1986, L17, 65 hp; 1987, L17, 65 hp

Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.

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