1967 427/400 ignition coil

[Thomas S.]

What is the correct ignition coil number for a 1967 non-TI 427/400?

[Keith B.]

Re: 1967 427/400 ignition coil

264. good luck finding a real one. only used on production in 67 on both L36 and L68 points ign cars

[Thomas S.]

Re: 1967 427/400 ignition coil

Thanks for the info. Yes, and expensive when you can find them. Going through some trouble shooting on top flight / Duntov car and hopefully it's not the coil.

[David H.]

Re: 1967 427/400 ignition coil

Thomas

Ignition coil, mounting, and capacitor total 5 Originality points & 5 Condition points. Not many points to be gained/lost vs cost of an original.

More of a point problem in Operations when things don't work.

Dave

[Thomas S.]

Re: 1967 427/400 ignition coil

Thanks for the feedback.

[Keith B.]

Re: 1967 427/400 ignition coil

To go with what was said about how many points the coil is worth I am fairly sure that GM sold the ever so common 202 coil as its service replacement for the 264. I would find a good working original one of them and use it.

[Mark F.]

Re: 1967 427/400 ignition coil

And not to be deceptive with judging, but with the coil placed in the bracket with the number on the can toward the firewall, it's not really that easy to see as I recall - plus the ignition shielding gets in the way of a good view as well.

[Keith B.]

Re: 1967 427/400 ignition coil

And not to be deceptive with judging, but with the coil placed in the bracket with the number on the can toward the firewall, it's not really that easy to see as I recall - plus the ignition shielding gets in the way of a good view as well.

204 coils from 66 Chevelle 396 cars are good for that as the 0 can be hidden

[David D.]

Re: 1967 427/400 ignition coil

There is one listed on flea-bay currently... https://www.ebay.com/itm/14575021805...&segname=11021

[Keith B.]

Re: 1967 427/400 ignition coil

That is a repro coil

[Gary B.]

Re: 1967 427/400 ignition coil

204 coils from 66 Chevelle 396 cars are good for that as the 0 can be hidden

Keith,

I like your ingenuity!

Gary

[Keith B.]

Re: 1967 427/400 ignition coil

Keith,

I like your ingenuity!

Gary

Gary that was dumb luck. Weeks before judging for dad's 427/390 his original 264 coil failed. And I had a spare 204 coil for my Chevelle in dad's tool box. We swapped it out and the car ran great and used that for both chapter and regional judging. Both times got full credit. The regional judges thought it wasn't the correct number but let it slide due to the way we had it installed. And it's still in the car today.

[Thomas S.]

Re: 1967 427/400 ignition coil

So, I'm back on the coil issue. I didn't mention this but my question was related to chasing an issue with the car developing a misfire after driving for awhile. Tons of things to cause this so I';m not looking for overall trouble shooting advice.

Back to the coil. The one the car is a 264 dated on the bottom as 09/04, Sept 1994? I thought it might have had an original so that's ruled out.
The 67 GM service manual that includes the Corvette is not coil specific to this coil but instead just lists Standard and transistorized or TI. For a non-transistorized coil they list the primary resistance (ohms) as 1.24 - 1.46 and mine is 1.7. The secondary is 6.5K - 9.5K and mine is 12K. All measurements with the coil removed from the car. Sorry for the auto rotated image. Is there any other reference more specific to each coil?

The resistance is merely an indirect measure of the lengths of the each coil winding (primary or secondary) but at some point, a high resistance would degrade coil’s ability to produce the spark.

IMG_4984.jpg

[David H.]

Re: 1967 427/400 ignition coil

So, I'm back on the coil issue. I didn't mention this but my question was related to chasing an issue with the car developing a misfire after driving for awhile. Tons of things to cause this so I';m not looking for overall trouble shooting advice.

Back to the coil. The one the car is a 264 dated on the bottom as 09/04, Sept 1994? I thought it might have had an original so that's ruled out.
The 67 GM service manual that includes the Corvette is not coil specific to this coil but instead just lists Standard and transistorized or TI. For a non-transistorized coil they list the primary resistance (ohms) as 1.24 - 1.46 and mine is 1.7. The secondary is 6.5K - 9.5K and mine is 12K. All measurements with the coil removed from the car. Sorry for the auto rotated image. Is there any other reference more specific to each coil?

The resistance is merely an indirect measure of the lengths of the each coil winding (primary or secondary) but at some point, a high resistance would degrade coil’s ability to produce the spark.

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Thomas

Start a new thread with your question - you'll get more responses.

Dave

[Keith B.]

Re: 1967 427/400 ignition coil

I see no reason to start a new thread. I will say this just find an original GM 202 or 204 coil and use it.