How much torque does a 403 olds have?
Olds 403 Specifications
| ENGINE | OLDSMOBILE 403 |
|---|---|
| BORE | 4.351 INCHES (110.5 MM) |
| STROKE | 3.385 INCHES (86.0 MM) |
| HORSEPOWER | 185 HP (138 kW) |
| TORQUE | 320 LB-FT (430 N-m) |
Is the 403 CID engine good for high RPM?
Big pistons and a short stroke are an excellent combination for a high-RPM engine, but here the other inherent 403 weakness comes into play: Windowed main webs, and to a lesser extent, siamesed cylinders. The bottom end of this block is not suitable for extended use at high rpm with very high cylinder pressure.
How big is the stroke on an Oldsmobile 403?
Engine builders know that it’s often easier to generate high RPM power with a short stroke. This is where the Olds 403 shines. In addition to its wide bore, it also has an unusually short 3.385-inch stroke.
When did the Olds 403 CID engine come out?
The 403 was made from 1977 to 1979 and used across the Buick, Olds, Pontiac and Cadillac vehicle lines. It was also used in other applications like motor homes, boats and some industrial applications.
What kind of engine does a Pontiac 403 have?
Pontiac vehicles equipped with the 403 CID: 1 1977 Bonneville 2 1977 Grand Prix (California Emissions Package) 3 1977-1979 Catalina Safari 4 1977–1979 Trans Am 5 1977–1979 Firebird Formula 6.6L
How much horsepower does an Oldsmobile 403 have?
Olds 403 Specifications ENGINE OLDSMOBILE 403 STROKE 3.385 INCHES (86.0 MM) HORSEPOWER 185 HP (138 kW) TORQUE 320 LB-FT (430 N-m) GAS MILEAGE 12 CITY 16 HIGHWAY (EST)
What was the bore of the Olds 403?
The Olds 403 was designed to be a big block in a small-block package. As a result, it has a bore of 4.351 inches (110.5 mm), giving it one of the widest bores of any factory small-block V8. Oldsmobile discontinued the 403 after the 1979 model year. General Motors used the Olds 403 as a ‘corporate engine’ across its line of brands.
Big pistons and a short stroke are an excellent combination for a high-RPM engine, but here the other inherent 403 weakness comes into play: Windowed main webs, and to a lesser extent, siamesed cylinders. The bottom end of this block is not suitable for extended use at high rpm with very high cylinder pressure.
The 403 was made from 1977 to 1979 and used across the Buick, Olds, Pontiac and Cadillac vehicle lines. It was also used in other applications like motor homes, boats and some industrial applications.