I don’t. This car came with the 305. The 307 in my opinion was a lousy earlier engine . Or as in this case a 3.8 6 cylinder. There is a definite difference...
The low end torque of an Olds can be seen on paper too. Compare the HP & torque graphs of an SBC and Olds, and you'll see very different looking curves.
A Chevy is a revver, with tall peaks, steep curves that really come alive past 4000rpm. Torque is a similar story on an SBC, very steep, peaky curve.
An Olds is a lazy low revver, with barely any peaks. It's got a very broad curve that dies past 4000rpm. Torque peaks just barely above idle.
Compare dyno numbers too, and look out for "average" numbers. A SBC might peak at 300HP, but the average HP is likely less than 100. An Olds may only peak around 250HP, but I bet the average is very close to a peak... again due to the broad power band.
In the end, it comes down to what you need... in stock not much difference at all... but don't rev it, cuz it's outta puff around 4500rpm.
31st Jul 2021, 16:35
I don’t. This car came with the 305. The 307 in my opinion was a lousy earlier engine . Or as in this case a 3.8 6 cylinder. There is a definite difference...
The low end torque of an Olds can be seen on paper too. Compare the HP & torque graphs of an SBC and Olds, and you'll see very different looking curves.
A Chevy is a revver, with tall peaks, steep curves that really come alive past 4000rpm. Torque is a similar story on an SBC, very steep, peaky curve.
An Olds is a lazy low revver, with barely any peaks. It's got a very broad curve that dies past 4000rpm. Torque peaks just barely above idle.
Compare dyno numbers too, and look out for "average" numbers. A SBC might peak at 300HP, but the average HP is likely less than 100. An Olds may only peak around 250HP, but I bet the average is very close to a peak... again due to the broad power band.
In the end, it comes down to what you need... in stock not much difference at all... but don't rev it, cuz it's outta puff around 4500rpm.