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79 L48/L82 Ignition Timing Specs

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Old Jul 27, 2009 | 05:32 PM
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Oldguard 7's Avatar
Oldguard 7
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Melting Slicks
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Default 79 L48/L82 Ignition Timing Specs

Are the ignition timing specs for the 1979 L-48 and L-82 engines 12 degrees BTDC and 14 degrees BTDC? The reasons I ask is because I now have 64cc aluminum heads on my engine and for now I wish to set the initial timing to factory specs until I get a dizzy re curve kit. Another reason I ask is because since I have these aluminum 64cc heads along with the L-82 (TRW forged flattop pistons) Will I need to retard timing because of this? Engine started it's life as an L-48.

Last edited by Oldguard 7; Jul 27, 2009 at 09:09 PM.
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Old Jul 27, 2009 | 06:08 PM
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mint79
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i am in my shop right now and looked at my emission sticker.1979 l-48 with auto.
4 degrees btdc at 500 rpm. man. trans states 6 degrees at 700 rpm.
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