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Old 10-25-2010, 02:24 PM
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Windsor 351 VS 302?

I just purchased a 49 Ford F-1 with what I was told a 351W and a C6 trans. Since I am pretty unfamiliar with this engine (or trans)..... I need help! The stamp on the intake manifold reads C8AE-9425-B with a firing order of 1-5-4-2-6-3-7-8. As far as I can tell the firing order on the 351 s/b 1-3-7-2-6-5-4-8. How can I tell what I really have here? Thanks in advance!!

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Old 10-25-2010, 03:33 PM
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The numbers off the intake indicate a 1968 to 1970 302.
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Old 10-25-2010, 03:43 PM
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Yep i agree with DV, By the numbers it's a 68 model 302 engine.
That is if these are the #s off the engine thats sitting in the truck right now C8AE-9425-B with a firing order of 1-5-4-2-6-3-7-8 .


Cole
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Old 10-25-2010, 03:44 PM
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302 HO/351W Firing Order


"Normal" 302 Firing Order

Looks like you have a 302...
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Old 10-25-2010, 06:05 PM
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351w Vs 302

Where do I find the numbers off the engine? The C8AE etc... is off of the intake manifold. Is it possible that a 302 intake will also fit the 351W? Thanks all for your input and info as well... greatly appreciated... Next question, once I figure out what exactly I have here... I am also trying to decide if I want to keep this in the truck or switch it back to the old flathead V8. Any ideas?? Thanks again!!
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Old 10-25-2010, 06:10 PM
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No a 351W Intake won't fit a 302 it alittle wider. Pull the starter and look on the side of the block for the # it should start just like the intake # C8 or something . Don't know but i do like the old flathead's guess it will depend on what your plans are for the truck.


Cole
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Old 10-25-2010, 09:09 PM
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351w Vs 302

Thanks Cole.... I'll do that tomorrow after work. Besides HP I suppose, any plus's or minus's on the 302 vs. the 351?
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Old 10-26-2010, 06:13 AM
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The biggest difference is cost of parts, but whatever is available for the 5.0L/301 is usually available for the 351. The 302 has about an effective max cubic inch max of 347 give or take a few, while a 427 cid is fairly easy for the 351 and with the "right" block (as well as all of the other parts needed).

Cost of parts - camshafts and heads are about the only parts that are generally interchangeable between the two engines, tho there are caveats with them as well. Intakes for the 302 are one place that I can show a difference in pricing. An Edelbrock Performer for a 302 is ~$160, a 351 is ~$200. An MSD Pro Billet Street distributor $263/$320 (ref:Summit for both)

Now, which do I prefer - why of course, a 351, though I do have a 302 in my '31. Why? When I bought the Ford crate motor, I just couldn't afford a $2000 more expensive at-the-time 351
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Old 10-26-2010, 01:13 PM
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Should the 302 need a crank at some point, there are 3.25" rotators that make it a 327/331 (w/0.030" over bore). And as said you can go to a 347 w/o too much more trouble or expense. So don't give up on the 302 just because it's small.

A flathead V8 Ford will will have the "wow" factor but will be giving up serious HP and parts availability, IMHO. They ARE plenty cool, though. And you could keep the stock diff and it would hold up fine- if that's what is under the truck now, that is.

I'd be checking out the tranny. If it is a C6 w/small block bolt pattern you may want to hang on to it or trade it off- they're not very common.

There's no need for a C6 in this truck anyway, IMO, unless you are going to tow w/it or something. Mentioning the flathead engine as you did, it doesn't sound like this is going to be a "work" truck. The C6 is a big, heavy tranny that eat about 25 HP more than the smaller, lighter C4 trans. Just something to consider..
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Old 10-26-2010, 04:01 PM
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The 302 is a good engine but the 351W alot better in my book. But you can get some decent power from the 302 and i agree the C6 i overkill C4 would serve you much better especially with the 302 even the 351W for that matter.JMO


cOLE
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Old 10-26-2010, 06:25 PM
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OK, here's what I got.... kinda hard to read up under the starter but it looks like C90E-8015. And as far as the trans goes, I'm pretty stupid on that as well. I was told it was a C6 but I really can't tell by looking at it. It does have a 23 stamped on the top where it bolts to the engine if that means anything.....
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Old 10-26-2010, 07:04 PM
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Click the link and see which transmission you have, there is a big difference in the size of the two. http://www.crankshaftcoalition.com/w...ntification#C6 .
Still the same on the casting # it's a 302 is the engine together in the truck now ?


Cole
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Old 10-26-2010, 07:18 PM
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Yes, its all intact for the most part. I have to put the distributor back in and hook up the plug wires, coil, etc.... plug a few lines just to make sure this baby will start. Thats what started this whole adventure...., trying to find the correct firing order. I'll check out the website and furthar my new found knowledge. I've already learned alot this week! Thanks for all the info!!
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Old 10-26-2010, 07:22 PM
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No problem keep us posted, The link i posted has pics also that always helps to . you will see the C6 has a solid bell-housing and a different pan also then the C4 plus the C4 you can remove the bell-housing Good luck with what you have going on.


Cole
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Old 10-26-2010, 08:07 PM
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Quote:
Originally Posted by 61comet
OK, here's what I got.... kinda hard to read up under the starter but it looks like C90E-8015. And as far as the trans goes, I'm pretty stupid on that as well. I was told it was a C6 but I really can't tell by looking at it. It does have a 23 stamped on the top where it bolts to the engine if that means anything.....
Stop the press.

C9OE-8 is code for 351W block made in 1969 or 1970.
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