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Just for reference, the 160 CID Midget engines made 375 HP with this 8 Port head. A turbo 181 should be very interesting.
WOW! And I'm hoping for 350-400hp with a turbo'd 250 build! What kind of torque did the 160ci Midget engine make? Any other specs on them? That's wild. Love it.
".....don't give up a TURBO more than makes up for all of this BS." Turbo-6
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It is pretty awesome, but keep in mind that this is a full tilt race engine with 13:1 compression and mechanical FI on alky using a .700+ lift roller cam.
However on another note, several racers using the 12 Port head on a race type 6 cylinder have achieved as much as a 150 HP gain over a heavily modded siamese head. So that should give you an indication of the potential available with this head design, either on a 4 cylinder or a 6.
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IMHO the best part about the 12 port for the street would be EFI for mixture distribution. That should make for easier mixture control and more boost friendly. Plus of course the fact that it's just plain cool.
My, what a steep learning curve. Erik II#5155
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IMHO the best part about the 12 port for the street would be EFI for mixture distribution. That should make for easier mixture control and more boost friendly. Plus of course the fact that it's just plain cool. Everytime you waste a lot of time scratching your head and fabricating parts to fix a problem someone comes up with the solution and your stuff goes in the scrap pile. shouldn't be that difficult to make a fuel rail to edd EFI to the mechanical FI
'45 Ford PU 66 Valiant wagon, leaning tower of power. 79 Chevy C10 w/250 02 PT Cruiser Convertable
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Nitrous bosses would be a good thing to add to the patterns as well.
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Put the injector bosses on the top for the fuel rail and the bosses for the NOS on the bottom , ah you've already thought of that.
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.....and two more bosses for water and alcohol. Oh never mind I'll take care of he alcohol.
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CNC, just wanted to let you know your making us Ford guys jealous
Az Chapter Head
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You are "Ford guys" because you had real heads to begin with, we're playing catch up and it ain't cheap. You can be as jealous as you wish but we still hear the jeers.
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
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No jeering here , glad to see something happening for the Chevy guys.Looking forward to see what other speed goodies they pull out of their sleeves!
Az Chapter Head
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The poor old dears.
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Could the 8 port head with out water be drilled for water in a special application giving more leeway in repositioning head bolts and water?
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
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While a solid casting will accomodate a custom bolt spacing and allow it to be placed on a block other than the typical Chevy 153 and 181 blocks, provided it doesn't interfere with any casting features of the head like rocker bosses or valve cover rail, etc... I don't think you will be able to gain any amount of water passages to create a water flow channel, at least not from any of the solid billet heads I have seen as a comparison.
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It might be easier to modify the block deck. Just thinking. I need to quit that.
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Scott,
You have some really nice stuff going on here. Sorry I have been away from the board for awhile. Stuff going on. Would love to see if you could cast a manifold for a 292 that could use a GM 3800 blower! Something that could be installed in a weekend by most everyone would definately be cool. I know you have a lot going on with your new stuff. Perhaps down the road we could look at that. Would love to install the intake with the side draughts!
I could help you out with the cad if you want.
Last edited by chopped 40; 12/19/12 02:36 PM.
Loud Pipes Saves Lives!
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cast a manifold for a 292 that could use a GM 3800 blower
as soon as he has 99 other buyers.
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Loud Pipes Saves Lives!
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I'd do it if I just had one buyer. Im off till after the first of the year Bob, i'll give you a call and run some things by you.
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Add another for that 3800 intake I would be all over that!
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I had someone that was supposed to send me a blower to get dimensions from and start this project a year or two ago. Maybe when he sees this he will dig it out and think about it again.
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Thanks for the link panic, I think the 90 or 112 seem to be the most requested versions to be asked about.
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Yes, those are the best sizes. The "M" number is the volume displaced by each rotation in cubic inches, with a pulley ratio of 2:1 to 4:1 to get the total near the engine displacement. I have no idea of the nose length from the end of the housing to the pulley centerline, which I suspect may be different between manifold types even among the 3800. My guess: GM-based 3800 V6 Eatons probably have good interchange of noses between specific applications, which is easy service. I wouldn't be worried about 1/2" difference, but 2-3" or more might need some work. I've heard (but no details) that the nose itself is not hard to shorten (both housing and shaft), and I'll bet there is a nice market out there for modified noses (as an exchange) to fit other non-OEM (fabricated) manifolds, like for the other obvious engines: slant 6, Ford 200, Ford 300.
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maybe a fresh approach to the pulley relationship on the various blowers would be to use a "jackshaft"(not quite the best term) arrangement utilizing some alternator or other mounting bolts to mount a brkt with a set of pulleys and shaft to "adapt" the unmolested blower's shaft/housing to the engine. Might be cheaper/easier than shortening the blower's length. In other words if the blower shaft places its drive pully in a plane further forward than the stock six's pully plane, use this above arrangement to catch the blower's pully, and with a correct length shaft, place another pully into the engine's pully plane. jus a thot
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good article, yeah the brktry would need to be pretty sturdy
Man would'nt a potvin setup on an inline six be a fitment problem-your radiator hoses would need supports to hold them up
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well, I'm waiting to put my order in for one of thoses 12 port crossflow head with EFI intake.
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Well the heads are 12 Port but their not Crossflow. EFI is doable however.
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Sorry about that, I went back and read more, your right. Just to think I was about to sell off 2-292 that I have and replace them with 4200 vortec, Thank You, Please let me know when your to take orders....mike Well the heads are 12 Port but their not Crossflow. EFI is doable however.
Last edited by mike williams; 12/27/12 09:33 AM.
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Thanks for your interest Mike, will do!
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I imagine He'll be here soon but Scott just announced on another site that he has purchased an aluminum foundry so he can cast and machine his products. It is looking up for inliners!
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
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Inliner Member 1716 65 Chevelle Wagon and 41 Hudson Pickup Information and parts www.12bolt.com
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Yeah, great news guys! I have just acquired an aluminum foundry that was shutting down after close to 60 years of business. So I have a feeling that more inline oriented products that have ever been available before are fixing to be hitting the market. Not just the 12 Port stuff I already offer for the Chevies, but inline products for all brands.
I have a feeling that 2013 is going to be a landmark year in Inliner history for product development!
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any photos of the new purchase?
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Not yet, I keep going to the foundry on a moments notice and just don't remember to get my camera. Im going to be moving it real soon, so I know at some point i'll have my camera handy. Im ready to start melting some aluminum.
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Meeting with my electrician tomorrow to get started on wiring one of my buildings to prepare for moving the foundry stuff into it. It'll just take a few days to complete, so in around a week from that point I can begin the move and set-up.
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Take a lot of pictures and show us what's happening.
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Will do, electrician just left and got a good quote, so he will start as soon as permits are ready.
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