Picked up a short block and 347 parts.

[Skidonenko]

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

[91CoupeMike]

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

Early stages if cylinder deactivation. Beeotch!

[91CoupeMike]

Stroker motors are overrated.

A 351 would do work. I just want to keep the short deck height. I really don't want a cowl hood. I know there are ways to make it work though.

[91CoupeMike]

Shit compression makes the turbo spool quicker...mines 11.1 lol

I know. Compression and boost make for badass engines lol

[KungFuHamster]

I know. Compression and boost make for badass engines lol

ask anybody with a blower on their new 5.0 lol

[Blackpony]

Depends on combustion chamber cc's. My new regal pistons have a 14 cc dish, they will yield me a 10:1 compression ratio with the headgasket thickness I have and the factory 46cc combustion chambers. I'd guess yours and a 62cc chamber would still make fair n/a compression ratio

Those pistons with a 347, 58 cc heads will net him around 9.8:1 ish cr.

[majorownage]

347>351 every day on a NA build. With exactly the same hci, the 347 will smoke it because of the smaller mains.

[DFWtechie]

I'll give you 60.00 for the pistons and rods then you don't have to find matches.

[jyro]

I wonder

347>351 every day on a NA build. With exactly the same hci, the 347 will smoke it because of the smaller mains.

what is the HP loss with 3" mains versis the 302 size. the reason svo went to the smaller size was because of the surface speed at high rpm on long duation races. I wouldn't think there would be much if any hp difference under 7500 rpm. Oil films don't generate much friction. Nascar is a totally different animal, they shoot for any weight and hp difference and go to extremes to get it, like running a rod 3 grams under weight.

[91CoupeMike]

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?

[FoxBodyNick]

That 351 turns into a 408 though =)

[Sleeper]

The newer 347 stuff Is much improved over the old. It all depends on the end goal. n/a, spray, boost.

[majorownage]

what is the HP loss with 3" mains versis the 302 size. the reason svo went to the smaller size was because of the surface speed at high rpm on long duation races. I wouldn't think there would be much if any hp difference under 7500 rpm. Oil films don't generate much friction. Nascar is a totally different animal, they shoot for any weight and hp difference and go to extremes to get it, like running a rod 3 grams under weight.

More than you'd think.

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

[greenbullitt]

More than you'd think.

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

are you in here, again?

[46Tbird]

347>351 every day on a NA build. With exactly the same hci, the 347 will smoke it because of the smaller mains.

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.