Chevrolet 267ci 9.3:1 Specs

Chevrolet Chevrolet 267ci · 3.5" × 3.484" · 9.3:1 engine specs: 267 ci (4.4L), 8-cylinder, 3.5" bore x 3.484" stroke, 9.3:1 compression.

Dimensions

Displacement267 ci / 4.4 L
Bore3.5"
Stroke3.484"
Cylinders8
Compression ratio9.3:1
Rod length5.7"
Rod ratio1.636
Bore/stroke ratio1.005
Piston deck clearance0.002"

Construction

Induction1-2
Advertised HP120 hp
Years1980

What these numbers mean

Bore/stroke character1.005 — square — bore and stroke are within 5%, a balanced compromise
Mean piston speed at 6,000 RPM3,484 ft/min — conservative for a street engine
Rod ratio1.636 — moderate — the range most production V8s fall in
Displacement per cylinder33.4 ci
Static compression9.3:1 — low by modern standards, generally happy on regular pump fuel

Cylinder head

Intake valve diameter1.725"
Exhaust valve diameter1.385"
Chamber volume49 cc
Rocker ratio1.5:1
Lifter typehydraulic

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Similar engines

Source: NHRA blueprints — nhra.net blueprints

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