Author Topic: coil marking  (Read 586 times)

Offline bgp429

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coil marking
« on: July 03, 2016, 05:24:21 PM »
Almost every Boss 429 has the number 10 on the coil bottom. Anyone know what it means?

Offline J_Speegle

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Re: coil marking
« Reply #1 on: July 05, 2016, 05:41:30 PM »
Have not found anyone that could explain the purpose of that marking.

Were they all mark with the same number originally??   Don't know but would guess (looking at other marks and patterns) that these have simply been copied and repeated over and over


This might be the origin of the mark - 69 Boss 429 engine installation picture



Jeff Speegle

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Offline specialed

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Re: coil marking
« Reply #2 on: July 05, 2016, 07:58:23 PM »
timing  10 tdc  ? the timing decal wasn't on the engine like most as it was on the snorkel & that was installed at kk,  just guessing

Offline bgp429

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Re: coil marking
« Reply #3 on: July 05, 2016, 09:51:43 PM »
timing  10 tdc  ? the timing decal wasn't on the engine like most as it was on the snorkel & that was installed at kk,  just guessing


That's certainly a good guess. Timing on a 69 is 10, not sure if 70 is the same. Don't think I ever saw any other number.