Archive
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Oldsmobile Engines 1995 - Present
Engines 1995 - Present
| This is the Aurora DOHC V-8 engine, the A8.
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| The words "Manufactured by General Motors exclusively
for Oldsmobile" appear on the intake manifold's tuned runners.
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What CIDS
CID Years Bore Stroke VIN Color Notes
4.0L '95 - 87mm 84mm A '95 introduced in '94.
(244)
Engine Performance
Year CID CR HP Torque
'95 244 (4.0L) 10.3:1 250@5600
Indy Car Engine
| | Production Aurora V-8
| Indy Aurora V-8 |
| Displacement | 4.0 liters (244ci)
| 4.0 liters (244ci) |
| Cylinder Angle |
| 90 degrees | 90 degrees |
| Cylinder Bore Spacing |
| 102mm | 102mm |
| Valvetrain |
| Dual overhead cams | Dual overhead cams |
| Valves per Cylinder |
| 4 | 4 |
| Camshaft Drive |
| Chain | Chain |
| Cylinder Head Material |
| Aluminum | Aluminum |
| Cylinder Case Material |
| Aluminum | Aluminum |
| Cylinder Liners |
| Dry iron | Dry iron |
| Crankshaft Design |
| 90 degrees | 90 degrees |
| Fuel System |
| Sequential EFI | Sequential EFI |
| Engine Controller |
| Delco Electronics | Delco Electronics |
| Maximum rpm |
| 6,400 | 10,500 |
| Horsepower |
| 250hp @ 5600 rpm | 600+ hp |
| Fuel |
| Unleaded gasoline | Methanol |
| Bore Diameter |
| 87mm | 93mm |
| Crankshaft Stroke |
| 84mm | 73.4mm |
| Deck Height |
| 8.84 | 8.1 |
| Compression Ratio |
| 10.3:1 | 13-15:1 |
| Throttle System |
| Throttle Body | Individual Runner |
| Lubrication System |
| Wet Sump | Dry Sump |
The Aurora will have white diamond metallic paint with black and gold
highlights (sounds like the performance colors of about 28 yrs. ago) with
Indy 500 graphics. A power sunroof, 3.71:1 transaxle ratio (included with
the Aurora's optional Autobahn package), chrome plated aluminum alloy wheels
and Goodyear Eagle P235/60R16 tires rated for sustained 150 mph speed. The
non-stock items that will be installed are those mandated by USAC which
include a roll bar and a five-point safety harness for the driver and
passenger.
[ Thanks to Glenn for this information ]
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