Gen VI 454 ignition timing after overhaul

8849 Views 8 Replies 4 Participants Last post by DAREDEVIL, Apr 1, 2011

McMaster

Discussion Starter · Mar 27, 2011

I'm in the middle of overhauling a 1996 gen VI 454 and I'm trying to figure the best way to set the ignition timing: Should I set it to #1 TDC on compression, stab the motor in, and then set the intake and distributer before rotating the motor; install the intake and distributer and set timing on the engine stand and then stab the motor; or something I haven't thought of. It doesn't look like there is much room for error as far as setting the timing.

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DAREDEVIL

· #2 · Mar 27, 2011

ignition timing, i would say yes..TDC and then there is a mark on the distributer...close to the #1 wire pickup..thats where the finger should point ..!
IMO, atleast on the 350s its that way and i do believe on the 454 as well !

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McMaster

Discussion Starter · #3 · Mar 27, 2011

Thanks, DAREDEVIL.

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McMaster

Discussion Starter · #4 · Mar 30, 2011

Just my luck - I had it 180 out.

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ejohnson03

· #5 · Mar 30, 2011

You may already know this, but make sure that the Timing connector to the PCM is disconnected before you advance and set the timing.

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McMaster

Discussion Starter · #6 · Mar 31, 2011

Let's say that I didn't know about disconnecting the timing to PCM connector - Which one is it?

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clgoch187

· #7 · Mar 31, 2011

single wire plug on the fire wall about /2 way to center from the drivers side

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McMaster

Discussion Starter · #8 · Apr 1, 2011

Thanks guys.

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DAREDEVIL

· #9 · Apr 1, 2011 (Edited)

on a vortec u dont have to disconect it at all, u cant set the timing it will only work in 1 position.

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