Chevrolet Small Block Gen I 302 (1966)

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Chevrolet Small Block gen. I 302, V8 (90o) cyl, 4 stroke, petrol engine
Introduced in 1966


Cylinders arrangement: V8 with 90ยบ included angle
Strokes: 4
Bore x Stroke: 101.6 x 76.2 mm
Capacity: 4942cc, 302ci

Construction materials

cast iron block 229.2 mm height, 111.76 mm bore spacing
aluminum alloy head
tufftride-hardened forged 1053-steel crankshaft with 5 main bearings 58.4mm diameter
shot-peened forged 1038-steel 'pink' connecting rod, length between centers 144.8mm, 50.8mm big end bearing diameter


side camshaft with overhead valves (OHV)
2 valves per cylinder - 16 valves total


Natural with 4 x Weber Carburetors:


Single spark plug per cylinder
Firing order, 1-8-4-3-6-5-7-2

Cooling and lubrication

Water cooled
Dry sump

Models used and Output

Year Model, Engine Induction Compression ratio Power Torque
1966 Lola T70 Mk 2 4 x Weber 48 DCOE 500 bhp / 373 kW
1967 McLaren M6 Lucas Mk II 500 bhp / 373 kW
1970 McLaren M8C Lucas Mk II 500 bhp / 373 kW
shortblock.jpg Source
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