need help-points to duraspark

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Jan 10, 2005 | 07:28 PM

stroker393

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From: Butner,NC

need help-points to duraspark

Here's what I've got; pulled a 302 w/ pts. engine and replaced it with a 77 351m/400 with duraspark. I mounted the duraspark unit on the 74 fenderwell near the starter solenoid and have the fire wall plug that feeds the points ignition. I just can't get fire to the distributor. Can anyone give me a clear and simple solution to get this truck out of my garage. I did this job for a friend with no funds involved and I'm at my wits end.

Jan 27, 2005 | 09:47 PM

Icicle

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From: Spokane WA

UMMMMM guys?

Im struggling with this conversion too, have an issue with eternal cranking once the key is turned, thinking duraspark diagrams from a newer system arent appropriate for something being converted from points......

does this look better?

http://www.mustangsteve.com/conversion.html

Jan 27, 2005 | 10:15 PM

Franklin2

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From: Virginia

That was a good diagram, and here's another.

If you want to go back to points, you can go to the store and get a points distributor for a 351 cleveland engine. It will fit your 351m/400.

Jan 27, 2005 | 10:36 PM

oldhalftons

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From: Spokane WA

definatly do not use a reagular duraspark diagram

the diagrams icicle and franklin2 posted have 1 start and 1 run position
the oem duraspark diagram has 2 start and 1 run and when everything is hooked up as soon as you crank the motor it continuues to crank untill you yank enough wires off of it to make it stop.

Jan 28, 2005 | 02:04 AM

Icicle

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Joined: Mar 2003

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From: Spokane WA

The one Franklin2 posted has a single start position......

so does the one from the old mustang site....

I think thats Our ticket Bob

Franklin2, your always really helpful, you are mister diagram

positive reputation points given

Its also nice this thread now has a searchable title for anyone else converting from points to duraspark....thanks again dave!!!!!!

On edit:I guess I cant give you reputation, apparently I just did recently, I will remember it though

Apr 20, 2009 | 02:32 PM

durtmvr

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Thanks for the help. Looked everywhere and found the information here.

Last edited by durtmvr; Apr 20, 2009 at 02:40 PM. Reason: posted the wrong stuff

Apr 20, 2009 | 02:37 PM

durtmvr

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Joined: Apr 2009

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Thanks for the schematics. As far as the eternal cranking thing. Just disconnect the white wire. I read somewhere that the white wire only retards the timing in the distributor for cold starting. I had to do that. Just put a 250 I6/C4 out of a Granada into my Ice Cream truck. Swapped out a 240 I6 with points. The electronic ignition is working great. Looked all over the web for the information and found it here.

Also, toward the comment about distributor swap, 429/460 distributer will work in a 351M/400. Just make sure you hook the spark plug wires up right!