GM Northstar L47 Oldsmobile Aurora

GM Northstar L47 Oldsmobile Aurora/Comptech, V8 (90o) cyl, 4 stroke, methanol engine. Click here
3990 cc, 93.0 x 73.4 mm
13:1
660 HP / 10700 rpm
aluminium block 205.7mm height, aluminium alloy head, 102mm bore spacing
5 main bearings, cross plane crankshaft
2 overhead camshafts per bank (DOHC), chain driven, 4 valves / cylinder - 32 valves total. 33 mm intakes and 29 mm exhausts valves diameter
aspiration, natural with multipoint electronic fuel injection
Firing system. Firing order 1-2-7-3-4-5-6-8
water cooled
Dry sump with oil to water heat exchanger (oil tank in front of engine)

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