Howdy ya'll! I have a 1967 352 cid that someone put in my 1976 F250.What is the correct timing on this engine?

 

Here you go. You can thank this gentleman.
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</TD><TD width="100%"> </TD><TD vAlign=top noWrap>Join Date: Jul 2006
Location: Pleasant Hill, CA
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</TD></TR></TBODY></TABLE><!-- / user info --></TD></TR><TR><TD id=td_post_10423292 class=alt1><!-- message, attachments, sig --><!-- message -->Ok, stock timing is 6 BTDC. All Ford V8's could use and like a bit more initial timing. Probably safe to say that your distributor is most like set for 26 degrees mechanical advance from the factory. So you could go up to 12 BTDC for the initial.

Plug the vacuum gauge into manifold vacuum warm up the engine and have your idle speed at about 650 rpm. Now advance your distributor, which should start at 6 BTDC, and watch the vacuum gauge. As the timing advances the gauge will read higher and higher. At a certain point it will stop giving you a higher reading and then will decline when advanced too far. So find that point where it stops rising and then retard just a bit from there. Timing light will probably be around 10-12 degrees.

Check idle speed and make sure it is at 650 rpm. Now you can check the idle mixture screws. I start with the both screws 1 1/2 turns out already. I know it will be on the lean side so all I need to do is open them more. As I open the vacuum gauge will read a higher vacuum just like timing did. Once again you will hit a point where it goes no higher. Mine hits that point at 2 1/2 turns out. With that optimized I check idle speed again as a higher vacuum also means a higher idle speed so I set for 650 one last time.
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Mike
1965 F-100 360-2V
1968 Cougar 302-4V
1968 Mustang 289-2V


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JEFFFAFA, that is a great explanation. Thanks for all your insights.

 

If your reading the 352 off the driver side of the block most all 352,360,390 all say this. As it's basic block casing ID that ford only made little changes too.
So if you've had the heads off and checked the bore & stroke. I'd figure it's a 360 or 390.
Orich

 

Another good way is to do a little research using the vin number. That's what I did.

 

If the engine has never been replaced in 35+ yrs many changes happen with that time slot. So much for the vin #can be miss leading.

orich