The vehicle is a '71 Buick LeSabre with a Stage 1 455cid V8 that was rebuilt about 5,000 miles and 8 years ago, and hasn't been driven in the last 5 years. I'm getting it back on the road within a week or so.
The 455 was built on purpose with the bearing clearances on the tight side (.0015 max on the rods and mains), and has a high-pressure/volume oil pump with the pressure regulator currently set at 50psi max. I've been using Rotella T 10-W30 with AC Delco filters (NOT the [censored] Frams that let all the oil drain back into the pan). The cam is a TA212 hydraulic flat-tappet, specs are: Intake .470"-218' / Exhaust .475"-230'. Valvesprings are stock Stage 1, iirc 115lbs pressure at .5"
I Live in West Texas, and the car is retired from a daily driver. I'll mostly drive it on weekend cruises, some long trips and once in awhile to the local 1/8-mile track for test-n-tune. I drive it easy until it's warmed up and don't drive it like my hair is on fire, although I do like to open it up on long roads and at the occasional stop-light.
I'm guessing I'll be changing the oil once a year, at 3-5K miles?
I have no preference on conventional vs. synthetic, but I don't want to order online.
What say ye all?
The 455 was built on purpose with the bearing clearances on the tight side (.0015 max on the rods and mains), and has a high-pressure/volume oil pump with the pressure regulator currently set at 50psi max. I've been using Rotella T 10-W30 with AC Delco filters (NOT the [censored] Frams that let all the oil drain back into the pan). The cam is a TA212 hydraulic flat-tappet, specs are: Intake .470"-218' / Exhaust .475"-230'. Valvesprings are stock Stage 1, iirc 115lbs pressure at .5"
I Live in West Texas, and the car is retired from a daily driver. I'll mostly drive it on weekend cruises, some long trips and once in awhile to the local 1/8-mile track for test-n-tune. I drive it easy until it's warmed up and don't drive it like my hair is on fire, although I do like to open it up on long roads and at the occasional stop-light.
I'm guessing I'll be changing the oil once a year, at 3-5K miles?
I have no preference on conventional vs. synthetic, but I don't want to order online.
What say ye all?
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