American Motors 360ci 10:1 Specs

American Motors American Motors 360ci · 4.08" × 3.44" · 10:1 engine specs: 360 ci (5.9L), 8-cylinder, 4.08" bore x 3.44" stroke, 10:1 compression.

Dimensions

Displacement360 ci / 5.9 L
Bore4.08"
Stroke3.44"
Cylinders8
Compression ratio10:1
Rod length5.875"
Rod ratio1.708
Bore/stroke ratio1.186

Construction

Induction1-4
Advertised HP290 hp
Years1970

What these numbers mean

Bore/stroke character1.186 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves
Mean piston speed at 6,000 RPM3,440 ft/min — conservative for a street engine
Rod ratio1.708 — moderate — the range most production V8s fall in
Displacement per cylinder45.0 ci
Static compression10:1 — in the range that usually runs on pump premium

Cylinder head

Chamber volume49.1 cc
Rocker ratio1.6:1
Lifter typehydraulic

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Similar engines

Source: NHRA blueprints — nhra.net blueprints

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