Highest flowing sbm heads?

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You guys want your cake and eat it to. Let’s see 700 horsepower NA and on pump gas too. Now pump gas can be anything from 93 octane to E85 so I’m guessing E85 would be the smart move.
 
To clarify I meant pump gasoline, not e85. Any old gas station off main street
You guys want your cake and eat it to. Let’s see 700 horsepower NA and on pump gas too. Now pump gas can be anything from 93 octane to E85 so I’m guessing E85 would be the smart move.
 
All this stuff is mid 11’s compression and pump gas friendly.
mine isn’t, because I had my heads milled for a little extra compression because I like running 110.
The 6.08 motor is 11.6
compression dyno’ed on pump gas
Trying to get this thread back on track, what would you guys spec for a 700hp 416 ci pump gas build?
Bloomer heads made 657 and 680 hp and have ran well at track. Add high compression or keep it pump gas and maybe find a m1 tunnel ram. Just a thought? But anything 600-650 pump gas should already be plenty lol
 
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You guys want your cake and eat it to. Let’s see 700 horsepower NA and on pump gas too. Now pump gas can be anything from 93 octane to E85 so I’m guessing E85 would be the smart move.

That's only 1.68 HP per cube. Although not easy certainly not impossible. From what I have been told by some one who was doing it after 2 HP per cube on pump gas it gets hard
 
That's only 1.68 HP per cube. Although not easy certainly not impossible. From what I have been told by some one who was doing it after 2 HP per cube on pump gas it gets hard


It’s hard in my book but then again I’m a budget racer. No special ring pacs, no vacuum pump, no line bore, no torque plate, no lightweight parts, shift at 6800 rpm, no special valves, home ported junk, probably a smaller carb than most would run, Chinese parts, self assembled, no dyno tuning, etc.
 
It’s hard in my book but then again I’m a budget racer. No special ring pacs, no vacuum pump, no line bore, no torque plate, no lightweight parts, shift at 6800 rpm, no special valves, home ported junk, probably a smaller carb than most would run, Chinese parts, self assembled, no dyno tuning, etc.
But still runs like a scalded dog!
 
That's only 1.68 HP per cube. Although not easy certainly not impossible. From what I have been told by some one who was doing it after 2 HP per cube on pump gas it gets hard
Show me the guy that makes 2hp per cube on pump gas.
360ci x 2hp = 720hp or 408ci x 2hp= 816 hp
 
Show me the guy that makes 2hp per cube on pump gas.
360ci x 2hp = 720hp or 408ci x 2hp= 816 hp



This is a big reason most of these posts go south. The 700 horsepower on pump gas guy doesn’t have the balls to start his on post. But after 25 pages he joins in with his “wet-dream” wishes. Can it be done??? Yes!!!! But we just gave him 25 pages of what it would take to hit his magical number of 700. Very unlikely he has the budget or know how to keep such an animal alive. Damn I hate these ragizine articles that guys read never realizing what is involved.
 
Trying to get this thread back on track, what would you guys spec for a 700hp 416 ci pump gas build?
700hp on pump gas, like 93 octane at 416" will take decent ported W8's or 9's, ported intake, a Ritter or R block, a solid roller in the mid 270-280° @.050", 700"+ lift, decent rods and crank, good oil control, good machine work and assembly. And don't be scared to turn it up. This is how I'd do it, your mileage may vary.
 
700hp on pump gas, like 93 octane at 416" will take decent ported W8's or 9's, ported intake, a Ritter or R block, a solid roller in the mid 270-280° @.050", 700"+ lift, decent rods and crank, good oil control, good machine work and assembly. And don't be scared to turn it up. This is how I'd do it, your mileage may vary.
In general I agree but it would be challenging nonetheless. And with a cam like that any kind of street manners are going to be out the door.
 
In general I agree but it would be challenging nonetheless. And with a cam like that any kind of street manners are going to be out the door.


And that’s only part of the package. Now we need a cooling system, bullet proof rearend, good shocks, tires, suspension, etc just to make it all worthwhile. Then you take it on no prep roads and expect it to hook. Lol
 
In general I agree but it would be challenging nonetheless. And with a cam like that any kind of street manners are going to be out the door.


You’d be surprised. “Street manners” is very subjective and as I always say…95% of the time not having ”street manners“ is tuning.

And I don’t care so you are, making 2 HP/CID is a *****. Thats why you don’t see it very often.
 
In general I agree but it would be challenging nonetheless. And with a cam like that any kind of street manners are going to be out the door.
You aren't going to get 700 n/a hp out of 416" without a cam close to what I posted, let alone the rest of the parts to make it. Reality bites.
 
You’d be surprised. “Street manners” is very subjective and as I always say…95% of the time not having ”street manners“ is tuning.

And I don’t care so you are, making 2 HP/CID is a *****. Thats why you don’t see it very often.
Exactly, my Dart has a 266/271°, .711/.719 solid roller and gets street driven a lot.
 
You’d be surprised. “Street manners” is very subjective and as I always say…95% of the time not having ”street manners“ is tuning.

And I don’t care so you are, making 2 HP/CID is a *****. Thats why you don’t see it very often.
You're not making 2hp per CID on pump gas N/A.
I don't care who it is that claims so and I know you never made that claim.
Hysteric :popcorn:
 
Where's the Ironmike thread w/the Hughes Bigmouths, and Bloomers,....when We need it......
 
It's a cool idea in concept but to do it, naturally aspirated, would be a pretty significant feat. You need a lot of high end parts working together very well to get that kind of torque high up in the rpm range.

Now, under boost.... different story of course.
Wow well isn't that answer righteous since now all of a sudden your an expert on what a guy should do n/a and yet all through this post all you did was argue facts
 
In general I agree but it would be challenging nonetheless. And with a cam like that any kind of street manners are going to be out the door.
I'm glad I started following this thread as your answers are better than a Saturday night comedy show.
 
And that’s only part of the package. Now we need a cooling system, bullet proof rearend, good shocks, tires, suspension, etc just to make it all worthwhile. Then you take it on no prep roads and expect it to hook. Lol
Just a casual observer in this thread but it seems like all the guys with real experience and know how are getting argued with or at least it seems that way to me. There are 4 or 5 members that have given truthful and factual responses but it seems like some of the guys don't like the answer so they keep asking the same question over and over again in hopes of hearing what they want.
 
Exactly, my Dart has a 266/271°, .711/.719 solid roller and gets street driven a lot.
And some guys here bark that a cam that big to big to drive the on street. Heck, I get crap when I mention a cam of 250-something on the street!

A 700hp small block on pump gas? I’d like to see that only to be followed by the expense and details of the guy driving it everyday. Ain’t no one here pulling that one off.
 
Streetable….. you mean like the Bower’s/Miller/Shellehamer drag week winner in 19? A GREAT moment in small block mopar history

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Guys. Just because I said something about streetability of a car with a 270ish @50 cam, that doesn't make me an idiot. Nobody in their right mind is daily driving such a car.

That doesn't mean I wouldn't want a drag car I can drive to a car show or a dinner out with the wife. That's basically my goal.

Some of you are basically looking for the tiniest little bit of nonsense to try to drive a wedge in. It's really ridiculous.

I love Mopars. It's insane but I do. I also happen to love SB mopars. Again I'm insane. I currently have four. FOUR SB mopar engines.

Do you guys realize that we're all in the same tiny little niche? Sheesh
 
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