The mark is on the harmonic balancer. The pointer should be visible by looking down from the passenger side of the engine compartment. They're usually bolted to the timing cover.
timing for the 454 engine is 10 degree's at TDC at 700 rpm in neutral or park
Check if you have secondary timing marks installed. Mine are bolted to the oil pan and easily accessible from the bottom. Instead of using cyl #1 for setting the timing, you will have to use #5 or #8 (to make up for the 90 degrees offset to the factory timing marks
yes there is.
what are the factory timing specs for a 1977 chevy 454
what is the ignition timing for a 1988 Chevy 454 engine
Which 454? The LS5 and LS6 are two VERY different engines even though they are both 454's. Timing specs are different as well. 8 degrees before TDC at idle will work for either, but may not be optimal.
eBay offers a 454 Chevy Engine Rebuild Kit. It costs $379. It has all the necessary parts to rebuilt one's own engine. The engine was used in the 1970 Chevy Corvette LS5.
A timing CHAIN
6500
If you want to know the timing specs then here it is 4 degrees before top dead center / BTDC. Top dead center is zero on the timing bracket / Tab.BTDC. are the marks on the left side of the zero on the tab.ATDC / After top dead center are the marks on the right side of the timing tab.Hope this answered your question. If not please ask it again.
1970
1970