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Exhaust Header Information
The engines were developed using 2-1/8" diameter x 34" long primary tube headers with 3.00" diameter collectors.
Starter:
The starter recommended is a high-torque mini starter. It is a compact starter that delivers plenty of torque in a small package which
offers increased clearance for extended oil pans and exhaust systems. It is available either black, part number 12361146, or chrome,
part number 12363128.
Caution
This engine assembly needs to be filled with oil and primed. You should add the specified oil (see start-up instructions) to
your new engine. Check the engine oil level on the dipstick and add accordingly.
To prime the engine, first remove the distributor to allow access to the oil pump drive shaft. Note the position of
the distributor before removal. Install the oil priming tool, part number 141-955 from our licensed partner
factoryperformanceparts.com. Using a 1/2" dill motor, rotate the engine oil priming tool clockwise for two to three minutes.
While you are priming the engine, have someone else rotate the crankshaft clockwise to supply oil throughout the engine
and to all the bearing surfaces before the engine is initially fired. Reinstall the distributor in the same orientation as it was
removed.
After the engine has been installed in the vehicle, recheck the oil level and add oil as required. It is also good practice
to always recheck the ignition timing after removal and reinstallation of the distributor. See the section on the engine
specifications for the proper timing information.
Start-up and Break-in Procedures
1. After installing the engine, ensure the crankcase has been filled with 5w30 motor oil (non-synthetic) to the recommended oil fill
level on the dipstick. Also check and fill as required any other necessary fluids such as coolant, power steering fluid, etc.
2. The engine should be primed with oil prior to starting. Do this by using an engine oil priming tool, (See above). Follow the
instructions enclosed with the tool. This is the sure way to get oil to the bearings before you start the engine for the first time. Also,
prime the engine if it sits for extended periods of time.
3. Safety first. If the vehicle is on the ground, be sure the emergency brake is set, the wheels are chocked ad the car cannot fall into
gear. Verify everything is installed properly and nothing was missed.
4. Start the engine and adjust the initial timing. Set the ignition timing to 10-12° before top dead center (BTDC) and the engine idle
to 950 RPM (ANNIVERSARY EDITION 427) with a timing light and the vacuum disconnected and plugged. Rotate the distributor
counterclockwise to advance the timing. Rotate the distributor clockwise to retard the timing.
5. When possible, you should always allow the engine to warm up prior to driving. It is a good practice to allow the oil sump and water
temperature to reach 180°F before towing heavy loads or performing hard acceleration runs.
6. Once the engine is warm, set the total advance timing to 34-36°F at 4000 RPM.
7. The engine should be driven at varying loads and conditions for the first 30 miles or one hour without wide open throttle (WOT) or
sustained high RPM accelerations.
8. Run five or six medium throttle (50%) accelerations to about 5000 RPM , and back to idle (0% throttle) in gear.
9. Run two or three hard throttle (WOT 100%) accelerations to about 5000 RPM, and back to idle (0% throttle) in gear.
10. Change the oil and filter. Replace with 5w30 racing motor oil (not synthetic) and a PF35L AC Delco oil filter. Inspect the oil and the
oil filter for any foreign particles to ensure that the engine is functioning properly.
11. Drive the next 500 miles under normal conditions or 12 to 15 engine hours. Do not run the engine at its maximum rated engine
speed. Also, do not expose the engine to extended periods of high load.
12. Change the oil and filter. Again, inspect the oil and oil filter for any foreign particles to ensure that the engine is functioning properly.
13. Do not use synthetic oil for break-in. It would only be suitable to use synthetic motor oil after the second recommended oil change
and mileage accumulation.
Anniversary Edition 427 (19166392) Specifications REV15JA15
TITLE
19211812
PART NO.
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