Brothers got a 77’ corvette (383 stroker) He’s got bad tires and winters coming soon so they want jack the car up and break in the engine that way. But doesn’t the resistance of the car/road matter?
What camshaft is in the engine? Flat tappet or roller?
Franz said:
What camshaft is in the engine? Flat tappet or roller?
Flat tapper
@Ray
For carbureted engines, make sure fuel bowls are full and any air is bled from the fuel lines. Start the engine and immediately raise rpm to 3,000. Vary rpm between 1,500 and 3,000 for the next 20-30 minutes. Use a slow, steady acceleration/deceleration pattern. Shut down the engine and let it cool. Drain the oil and change the oil filter. This removes any metal particles from the break-in process. Refill the engine with break-in oil. The initial break-in is now complete. After the next 500 miles of normal driving, change the oil and oil filter again. If you choose a synthetic oil, we recommend putting about 5,000 miles on the camshaft with conventional oil before switching.
@Franz
This is great to know. Thank you
No problem! Before you get all excited and start it up, if you haven’t put zinc additive in there already I would not start up the engine until you do, and RUN break-in oil as well. Lucas Oil Zinc Additive