Chevrolet 140ci 9.501:1 Specs

Chevrolet Chevrolet 140ci · 3.501" × 3.625" · 9.501:1 engine specs: 140 ci (2.3L), 4-cylinder, 3.501" bore x 3.625" stroke, 9.501:1 compression.

Dimensions

Displacement140 ci / 2.3 L
Bore3.501"
Stroke3.625"
Cylinders4
ConfigurationI4
Compression ratio9.501:1
Rod length5.7"
Rod ratio1.572
Bore/stroke ratio0.966
Piston deck clearance0"

Construction

Block materialcast iron
Head materialcast iron
ValvetrainOHV
Fuel typegas
Advertised HP85–90 hp
Years1972–1975

What these numbers mean

Bore/stroke character0.966 — square — bore and stroke are within 5%, a balanced compromise
Mean piston speed at 6,000 RPM3,625 ft/min — in the range typical of performance street engines
Rod ratio1.572 — moderate — the range most production V8s fall in
Displacement per cylinder35.0 ci
Static compression9.501:1 — in the range that usually runs on pump premium

Cylinder head

Intake valve diameter1.625"
Exhaust valve diameter1.38"

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Variants sharing these dimensions (4)

These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.

YearAdvertised HPCode
197290 hp
197385 hp
197485 hp
197587 hp

Similar engines

Source: NHRA blueprints — nhra.net blueprints

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