I love opinions! I'm more curious about why. What's the difference in torque and so on. If you don't mind explaining. The funny thing is I am good at rebuilding engines and what not I just don't know which one is which and why they function differently.
Three major factors make the Rocket inferior to the Rat.
The first and most defined is the poor oil return inherent to the Old's. This typically requires some oil flow modifications to make it reliable. This has been covered a bazillion times, so I won't get into it here, but let's just say to get them to work properly and reliably is very involved.
The second issue is the Siamese exhaust ports on the middle cylinders, it's sometimes a challenge to keep the exhaust sealed up on those cylinders. You need to run then a bit fat on fuel to judo the exhaust cooler on aluminum manifolds.
The other blemish is the large crank journals, this generates high bearing speeds and with the already poor oil return system, makes them prone to bearing and crank damage.
As for power, the Oldsmobile makes more torque "down low" than the 454 dies I stock form, but the jet pump uses none of it, the punk doesn't "pull a gear" so the torque cones in very late, like above 4,000 rpm, do it makes it moot.
If you add to that, the availability of parts for the Old's versus the Chevy, it's that much more lopsided.....
Hope this helps.
I'm sure others will pipe in that have had an Oldsmobile that swapped to a Chevy.
GT
Sent from my SM-G900V using
SoCal Jet Boats mobile app
