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Old 06-23-2018, 12:56 AM   #1
cut7

Name: cut7
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Brand New Ported 12V Head

Brand new casting, oversized valves & seats (47.5mm intake, 44.5mm exhaust) ported for maximum flow whist still remaining streetable (I left the swirl hump in). It flows 232 CFM (stock is about 145 CFM). Valves are stainless steel, 3-angle valve job, 60 lb valve springs. Head has been heated (relaxed), shot tumbled, & decked flat. This head has never been installed.

I have an identical head on my truck, it runs very well at low rpms & allows the motor to rev to 4200 rpm. My boost pressure dropped quite a bit when I installed this head, as did my EGTs. My truck makes an obscene amount of horsepower, yet is tame enough to be a daily driver; even my teenage daughter can drive it.
 
Old 06-23-2018, 01:17 AM   #2
cut7

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I forgot to put a price on this. $2000
 
Old 06-23-2018, 05:05 AM   #3
TruckYou
 
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Good price. Someone get after it. Wish I had the money to scoop it up myself

Sent from my Pixel using Tapatalk
 
Old 06-24-2018, 08:55 AM   #4
ctdthrasher

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Too bad I need this in a 24v flavor
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98 12V quad cab. PDD 5x14s and 025. 63/68/.83
13.06@103. need more fuel....and air....and fuel
 
Old 06-24-2018, 10:55 AM   #5
Hurley
 
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Pictures?
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THIS
IS
COMPD.

95 2500 RCSB 2wd back-halfed and 4-linked
5x14/7mm +100cc/4k/11-blade billet 63/68/.91 T4
539/989

03 RCLB 4x4, SSR
 
Old 06-24-2018, 12:06 PM   #6
cut7

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I've had quite a few PMs asking me who did the work. The answer is, I did. I'm a mechanical engineer, I have a full CNC machine shop, & I've been porting for about 35 years, so I know exactly where to remove metal for maximum flow.

Here I'm installing the seats; intakes are in, exhausts not yet.

Click the image to open in full size.

Here is me porting.

Click the image to open in full size.

I don't have a picture of the bowl work, so I'd have to pop the valves out to take one. It's Sunday, we're having guests over for dinner after church, so I can't do it today. I have to say, however, I'm a little hesitant to post a picture of my porting (I don't want to give away all my secrets!)
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6BT Fummins, EFR 7064 over S369; DPS 3-piece manifold; wide-bowl pistons; ported head with 48mm intake & 45mm exhaust valves; 60 lb. valve springs; Colt stage 3 cam; H-1000 injection pump, 10° initial timing, 39° total advance; 5x14 Injectors popped to 325 bar; Fluidampr.
 
Old 06-25-2018, 11:37 AM   #7
SuperiorRam

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Glad I just bought a brand new Hammilton stage 2 😫😫
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97 12v 5spd
83 Grumman Olson bread van 4bt and a chev nv4500
83 RCSB 12V almost all the way in cab more fiberglass than steel
SRT Challenger 6 speed
 
Old 06-27-2018, 06:03 PM   #8
Big Blue24
 
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How did you hold the seats in the head? I'd hate to see one drop on a performance application and ruin an engine!
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95' 2wd Junker Drag Truck
1502 HP Fuel-Only 12mm P7100 Pump
SXE 472 over GTX55 116mm
OEM 12v Block
 
Old 06-27-2018, 06:35 PM   #9
cut7

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The seats are .125 -.175mm (.005"-.007") interference fit; requiring about 20 tons of press to push them in. I have never had a seat drop out of any head I have ever worked on in 35 years. I'm not saying it doesn't happen; I'm saying it doesn't happen on stuff I work on.
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6BT Fummins, EFR 7064 over S369; DPS 3-piece manifold; wide-bowl pistons; ported head with 48mm intake & 45mm exhaust valves; 60 lb. valve springs; Colt stage 3 cam; H-1000 injection pump, 10° initial timing, 39° total advance; 5x14 Injectors popped to 325 bar; Fluidampr.
 
Old 07-25-2018, 01:06 PM   #10
cut7

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Someone make me a reasonable offer.
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6BT Fummins, EFR 7064 over S369; DPS 3-piece manifold; wide-bowl pistons; ported head with 48mm intake & 45mm exhaust valves; 60 lb. valve springs; Colt stage 3 cam; H-1000 injection pump, 10° initial timing, 39° total advance; 5x14 Injectors popped to 325 bar; Fluidampr.
 
Old 08-01-2018, 10:42 PM   #11
cut7

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Bumpity-bump.
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6BT Fummins, EFR 7064 over S369; DPS 3-piece manifold; wide-bowl pistons; ported head with 48mm intake & 45mm exhaust valves; 60 lb. valve springs; Colt stage 3 cam; H-1000 injection pump, 10° initial timing, 39° total advance; 5x14 Injectors popped to 325 bar; Fluidampr.
 
Old 09-13-2018, 10:40 AM   #12
cut7

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Bump
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6BT Fummins, EFR 7064 over S369; DPS 3-piece manifold; wide-bowl pistons; ported head with 48mm intake & 45mm exhaust valves; 60 lb. valve springs; Colt stage 3 cam; H-1000 injection pump, 10° initial timing, 39° total advance; 5x14 Injectors popped to 325 bar; Fluidampr.
 
Old 01-17-2019, 08:28 PM   #13
cut7

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Sold.
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6BT Fummins, EFR 7064 over S369; DPS 3-piece manifold; wide-bowl pistons; ported head with 48mm intake & 45mm exhaust valves; 60 lb. valve springs; Colt stage 3 cam; H-1000 injection pump, 10° initial timing, 39° total advance; 5x14 Injectors popped to 325 bar; Fluidampr.
 
Old 01-17-2019, 10:28 PM   #14
runsideways2

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Mines.
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96 2500 4wd, firepunk stage 3 comp trans with anteater. Pushrods, 60lb valve springs, AFC live stock turbo and 185pump for now soon to be compounds with h pump.
 
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