4 degrees BTDC ON A 1990 1/2 Ton Truck With The SS-454 With A Throttle Body.
Between 8 and 12 degrees before TDC... My 454 is set at 10 degrees BTDC and it runs great.
4 DEGREES BTDC.
The base ignition timing for a 1974 Chevy 454 engine is between 8 and 12 degrees below top dead center. A timing light is needed to accurate set ignition timing.
what are the factory timing specs for a 1977 chevy 454
what is the ignition timing for a 1988 Chevy 454 engine
timing for the 454 engine is 10 degree's at TDC at 700 rpm in neutral or park
A timing CHAIN
#1
Ignition timing is set on a 1989 Acura Integra by setting the distributor to the appropriate angle. When set at the factory recommended angle the car will turn over with no problems.
YES they are the same engines.
Try 8 BTDC and see how it runs.
were dos the dots need to be on the timing chain together or apart