Picked up a short block and 347 parts.

[4bangen]

I bet by the time this engine is built he

1 welded 2 rod journal oil ports
2 left the valve train of of said cylinders
3 ends up with a mean loping 6 cylinder v8

and still goes faster than everyone thinks it should.

[broke again]

More than you'd think.

Top dollar 351 based strokers use cleveland mains with spacer bearings.

lol
mid dollar 351 builds with after market blocks use the smaller mains without spacers.... you are about 20 years behind the curve.

[Blackpony]

I would think a 331 would be a better street engine over a 347, or am I wrong?

The shorter piston causes more oil consumption and due to the rod pin it has more blow by right?

Not ideal for forced induction, but badass with nitrous?

Wrong, my 347 doesn't use a drop of oil. It never had anything to do with the wrist pin. Most engine builders I have spoken to from past years they contributed it to improper cross hatching of the cylinder walls along with the wrong ring package.

[YALE]

More than you'd think.

Top dollar 351 based strokers use cleveland mains with spacer bearings.

The real issue is bearing speed. The SVO blocks used Cleveland mains because they were being used in NASCAR, and had to live in that world. Also, FWIW, don't worry about Jyro. He knows what he's doing.

[91CoupeMike]

The real issue is bearing speed. The SVO blocks used Cleveland mains because they were being used in NASCAR, and had to live in that world. Also, FWIW, don't worry about Jyro. He knows what he's doing.

X2 jyro has been building motors for a long long time. That and his 351 has a roots blower. How cool is that?

[91CoupeMike]

Wrong, my 347 doesn't use a drop of oil. It never had anything to do with the wrist pin. Most engine builders I have spoken to from past years they contributed it to improper cross hatching of the cylinder walls along with the wrong ring package.

Interesting. That's more encouraging.

[YALE]

X2 jyro has been building motors for a long long time. That and his 351 has a roots blower. How cool is that?

That car is rad, lol.

[Rreemo]

Dude, just stop. Seriously.

There is something to be gained by the 4.030" bore of a 347 unshrouding a large-ish intake valve as compared to the 4.000" bore of a 351. But even most mildly built 351s are gonna be at that bore size anyway just due to normal rebuild practice.

At that point the big differences between the two are the taller block and thicker deck of a 351W, the better rod ratio of a 351W, the better head sealing of 1/2" head bolts of a 351W, and the stock 1/2" main bolts and beefier main caps of a 351W. Oh yeah, the "power robbing" 3" mains, lol.

A Windsor with the same heads and cam will make the same power and be cheaper than a 347. If you build it with comparable parts it will last a decade longer too. And there's room for another hundred cubic inches when you're ready to spend some money on it.

This! /Skinny Block Hype

Wrong, my 347 doesn't use a drop of oil. It never had anything to do with the wrist pin. Most engine builders I have spoken to from past years they contributed it to improper cross hatching of the cylinder walls along with the wrong ring package.

Correct - this is pretty much a thing of the past and kind of an old-school wise tell now. There were oil burn issues with some of the earlier stroker builds. The problem with those 347's was that the oil ring was too low on the piston, and therefore would pass into/over the notch you have to make in the bottom of the cylinder to allow clearance for the rod bolts. By passing over those notches, the ring would of course pull some oil up into the cylinder (especially at higher RPM)...thus causing some oil burn. Over time it of course would also wear that ring a lot more than normal, which would lead to even more oil burn, and overall shorter engine life. It was always said that 331's didn't have the problem, but that wasn't always true b/c a lot of machine shops would include in their prep price and automatically notch the cylinders when you tell them you are building a stroker, even though most 331's don't need the notches. Of course an un-notched 331 really wouldn't ever be a concern.

Regardless, making sure you have the right pistons with the oil ring higher on the cylinder (and that some dodo doesn't over-notch your block) will prevent any of that from ever being a problem.