ford 347 stroker vs 351W - Hot Rod Forum : Hotrodders Bulletin Board
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Old 03-27-2004, 05:14 PM
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ford 347 stroker vs 351W

Can you name some bonuses of each

having a discussion with someone who thinks the 347 is the best thing ever, and i tend to disagree.

Thanks
Dubz
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Old 03-27-2004, 06:36 PM
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The 347 in my opinion is a poor design the piston comes to far out of the bottom of the bore and will knock the skirts in.The block is just to short at 8.200.






mike

The 347 in my opinion is a poor design the piston comes to far out of the bottom of the bore and will knock the skirts in.The block is just to short at 8.200.






mike

Last edited by Rogers Performance; 03-27-2004 at 06:36 PM.
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Old 03-27-2004, 08:19 PM
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347

347's vs 351? 351 is a much better, much stronger block and crank and a much better rod to stroke ratio. 347's are good for packaging and power but they don't last like a 351w would, the power is about equal amybe a bit more for the 351w all things being equal. 331 is the way to go in a 302 block.
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Old 03-27-2004, 10:22 PM
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You can find a load of good and accurate stroker info here. Those guys live and breathe 331/347 and above. Just do a "search" for "stroker" and you'll have days of reading.

There are thousands if not 10s of the 347 strokers running around.

The skirt thing is a non-issue with the pistons used in most 347 kits. They have a shorter skirt and compression height.

The rod ratio is of course a consideration. But in the big picture it's a ratio you can live with.

The 347 allows you to use all the bolt on parts you have on a 302 (brackets, pulleys etc.). It's lighter than a 351W and is a better fit in tight engine bays.

If I already had a suitable 302 block, I'd build a 347.

If I didn't already have a 302 and had to buy a block anyway, I might consider a 351W. If it fit my engine bay and didn't require some special headers I'd probably go that way.

And then..........I'd stroke that too!!!
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Old 03-28-2004, 09:47 PM
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So far, I'm happy with my 347. However, for the $$ invested, I sorta wish I had gone with a 393 or a 408. Don't get me wrong though.......they 347 is quite torquey, and it's a HUGE difference over how it ran as a 302.
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Old 06-22-2010, 09:18 AM
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you just cant beat the sound of a 347! It is very unique and in my opinion sounds better than the 351w. But I am not a fan of any of the ford 351 motors.
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Old 06-22-2010, 02:22 PM
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This thread is 6 years old. I hope the dude`s got it settled by now.
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Old 06-22-2010, 02:38 PM
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Quote:
Originally Posted by Xtang
you just cant beat the sound of a 347! It is very unique and in my opinion sounds better than the 351w. But I am not a fan of any of the ford 351 motors.
Seeing how they are both Windsor engines and the only real difference is the deck height of the block...I'd like to know how your "tuned ear" can tell the difference between one or the other if you don't already know what is under the hood?? What a bunch of Hogwash!!

Keep learning, the 351W engine is all around better than the 302 based strokers for making power, and you can stroke it to 400+ cubes if you want.

If you want a really bad *** engine, stroke a 351 Cleveland with 4 barrel heads to 392-408 cubes and let it sing- 650 hp on pump gas is easy enough to do
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Old 06-22-2010, 09:50 PM
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Quote:
Originally Posted by ericnova72
Seeing how they are both Windsor engines and the only real difference is the deck height of the block...I'd like to know how your "tuned ear" can tell the difference between one or the other if you don't already know what is under the hood?? What a bunch of Hogwash!!
I agree that the 351 is better but also remember that the 351 has a different firing order than the standard 302 and does sound different.
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Old 07-06-2010, 02:54 PM
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oh weird, I guess it is possible to hear the difference between the two. Im gonna take a shot in the dark that you have not heard the two motors with straight pipes or performance mufflers before, I stick by the 347 any day, especially stock to stock sound. If you have never heard a stock 351w with straight pipes on it count yourself lucky.
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Old 07-06-2010, 03:33 PM
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Quote:
Originally Posted by Xtang
oh weird, I guess it is possible to hear the difference between the two. Im gonna take a shot in the dark that you have not heard the two motors with straight pipes or performance mufflers before, I stick by the 347 any day, especially stock to stock sound. If you have never heard a stock 351w with straight pipes on it count yourself lucky.

How can you compare "stock to stock sound" when a 347 is not a factory engine?
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Old 07-06-2010, 10:34 PM
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ho firing order

The 80's HO 5.0 engines used a different cam that required the same firing order as the 351. that seperated 7 and 8 firing right after each other in the stock 302. that reduced crankshaft stress, harmonic problems etc The 5.0 HO had that throaty sound that Ford has tried to retain with the new modular engines.
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Old 07-07-2010, 08:16 AM
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Quote:
Originally Posted by Plaintoast
How can you compare "stock to stock sound" when a 347 is not a factory engine?

302 block, you know what i mean. same deal.
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