We just got a 57 chevy that was restored and built in 1992, and the PO passed away 3 years ago. The wife selling it didn't know much about it except it's a crate motor from 1992 with 330 HP, 355 cubic inch. We don't know much more as for specs. It has a dual quad setup with edelbrock 500's. It's got 25,000 miles since new/install in 1992.
The cam is very mild, you can barely hear any rough idle. It looks like it has the fuelie/double hump heads though, which I didn't expect on a "crate motor".
So anyways, is there any recommended oil that's safe for whatever internals this engine has? I'm guessing it should use some Rotella or Delo 15W40. I've heard rumors that the crate motors are recommended to use 20W50 but only if you drive them hard. This is a weekend cruiser, no racing. We live in FL where the temps are high, and the car has working A/C. It's got a 700R4 tranny and 3.36 gears, so it's great for long drives.
The cam is very mild, you can barely hear any rough idle. It looks like it has the fuelie/double hump heads though, which I didn't expect on a "crate motor".
So anyways, is there any recommended oil that's safe for whatever internals this engine has? I'm guessing it should use some Rotella or Delo 15W40. I've heard rumors that the crate motors are recommended to use 20W50 but only if you drive them hard. This is a weekend cruiser, no racing. We live in FL where the temps are high, and the car has working A/C. It's got a 700R4 tranny and 3.36 gears, so it's great for long drives.