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I requested a quote on this engine as I am doing research since I may be in need of a replacement engine soon. I was told $12,500. I also got a build sheet. I will try to paste it here but not sure if it will work since I am on my phone:

“The J&K PowerstrokeR”
Designed and built by J&K Engines

DESCRIPTION: We bored and stroked a 6.0 liter Power Stroke to a 6.3 liter making it 383 cu.in. More displacement resulted in dramatic gains in horsepower and torque! The entire rotating assembly has been Blue Printed and Balanced and Dyno tested with results. We stroked our 2004 F-250 utility truck with no upgrades, just simply a stock configuration.

RESULTS: stock 6.0 f-250
270 HP @ 3300 rpm (at the wheels)
485 ft lbs of torque @ 2000 rpm (at the wheels)

RESULTS: 6.3 “ Powerstroke’R”
446 HP @ 3125 rpm (at the wheels)
850 ft lb of torque @ 2670 rpm (at the wheels)

The “6.3 Powerstroke’R” gained 176 horses and 365 ft. lbs of torque!
These dramatic power gains are based on NO modifications to the stock 2004 F-250. With a 2.5 inch exhaust. Any mods that anyone does to this platform will increase the HP and torque even more.

COMPONENTS AND PROCESS:

• 6.0 liter block bored .040
• Oil galley plugs tapped and screwed in.
• 2010 6.4 Power Stroke crankshaft custom machined and balanced.
• Connecting rods, honed and balanced.
• .040 Mahle pistons, milled, notched and balanced. Pistons tops are ceramic coated and skirts are also coated by PolyDyn, check them out, Performance coatings by Polydyn.
• G-rotor, for low pressure oil pump is custom machined.
• Front engine cover is custom machined to fit 2010 6.4 Power Stroke crank shaft.
• G-rotor cover custom machined.
• Harmonic balancer is machined and balanced.
• Flex plate balanced.
• Mains, rod and cam bearings are coated by PolyDyn, for longer life and less wear, Performance coatings by Polydyn.
• Rear engine timing cover with rear main oil seal.
• Custom Teflon to Teflon aircraft grade front main oil seal.
• SCT X4 power flash programmer with a custom tune installed for the 6.3 displacement.

Remember this stroker process is on a 2004 Ford F-250 all stock! Now, if our stroker is installed in a 2005/2007 F series with the newer FICM, you would gain an additional 55 horses and torque would increase as well. Also the 05/07’s have a 3 inch exhaust which adds even more power.
 
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I plan in keeping my truck for literally ever. So if my engine gets 600k on it and i end up needing a new one and my frame is still straight, this could be an option for me. 12.5k verse a new truck.

I would like to see when all this new torque comes in to play, if its a lower rpm than with pur current curve
 
What? They doubled their price to 12.5 for a short block??? They must have switched their target sales group from "hardworking everyday American" to "sponsored competition team"
That's how it looks to me. No mention of heads or long block in the quote so I assume the 12.5 is short block. Needless to say I am not considering it.
 
That's how it looks to me. No mention of heads or long block in the quote so I assume the 12.5 is short block. Needless to say I am not considering it.
I emailed them asking if it was a short block, long block or turn key. Here is the response:

please read in detail the build/stat sheet, it will in explain what comes with the engine.
It is a short block with extras.
 
What? They doubled their price to 12.5 for a short block??? They must have switched their target sales group from "hardworking everyday American" to "sponsored competition team"
Hey, we are in a magazine! Now we can double the price!! >:)


I emailed them asking if it was a short block, long block or turn key. Here is the response:

please read in detail the build/stat sheet, it will in explain what comes with the engine.
It is a short block with extras.
Pricks.
 
I requested a quote on this engine as I am doing research since I may be in need of a replacement engine soon. I was told $12,500. I also got a build sheet. I will try to paste it here but not sure if it will work since I am on my phone:

“The J&K PowerstrokeR”
Designed and built by J&K Engines

DESCRIPTION: We bored and stroked a 6.0 liter Power Stroke to a 6.3 liter making it 383 cu.in. More displacement resulted in dramatic gains in horsepower and torque! The entire rotating assembly has been Blue Printed and Balanced and Dyno tested with results. We stroked our 2004 F-250 utility truck with no upgrades, just simply a stock configuration.

RESULTS: stock 6.0 f-250
270 HP @ 3300 rpm (at the wheels)
485 ft lbs of torque @ 2000 rpm (at the wheels)

RESULTS: 6.3 “ Powerstroke’R”
446 HP @ 3125 rpm (at the wheels)
850 ft lb of torque @ 2670 rpm (at the wheels)

The “6.3 Powerstroke’R” gained 176 horses and 365 ft. lbs of torque!
These dramatic power gains are based on NO modifications to the stock 2004 F-250. With a 2.5 inch exhaust. Any mods that anyone does to this platform will increase the HP and torque even more.

COMPONENTS AND PROCESS:

• 6.0 liter block bored .040
• Oil galley plugs tapped and screwed in.
• 2010 6.4 Power Stroke crankshaft custom machined and balanced.
• Connecting rods, honed and balanced.
• .040 Mahle pistons, milled, notched and balanced. Pistons tops are ceramic coated and skirts are also coated by PolyDyn, check them out, Performance coatings by Polydyn.
• G-rotor, for low pressure oil pump is custom machined.
• Front engine cover is custom machined to fit 2010 6.4 Power Stroke crank shaft.
• G-rotor cover custom machined.
• Harmonic balancer is machined and balanced.
• Flex plate balanced.
• Mains, rod and cam bearings are coated by PolyDyn, for longer life and less wear, Performance coatings by Polydyn.
• Rear engine timing cover with rear main oil seal.
• Custom Teflon to Teflon aircraft grade front main oil seal.
• SCT X4 power flash programmer with a custom tune installed for the 6.3 displacement.

Remember this stroker process is on a 2004 Ford F-250 all stock! Now, if our stroker is installed in a 2005/2007 F series with the newer FICM, you would gain an additional 55 horses and torque would increase as well. Also the 05/07’s have a 3 inch exhaust which adds even more power.
So they tested a bone stock 6.0 with realistic dyno results, then tested a "bone stock" 6.3 stroker that gained "176hp" to the wheels.....oh yah it happened to have an SCT with a custom tune written for the 6.3 motor....but still bone stock.....and looky there stock HP levels for a tuned 6.0:doh:


Where is the gain???
PASS....Money can be better spent elsewhere...

Edit: also....I had no clue that 05-07 FICM's give the older trucks 55hp gains.....where has this info been for the last 10years????
 
Yeah that's right about what mine put down at the VDP dyno day....at that point the only mod I had was the ported intake and was running the 1.5 Beta turbo kit.....and the Mild Panty Dropper tune for stock bolts
 
I would hate to deal with them for any kind of warranty claims... That response alone is enough for me to walk away. Apparently they aren't in any great need for new customers with responses like that.
 
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My original quote of their email got cut off some by my phone, but it is not much better. Now that I am on my laptop, here is the whole response to my email asking if it was a short block, long block or turn key engine (the build sheet is what I copied into the earlier post):

"Russell,
please read in detail the build/stat sheet, it will in explain what comes with the engine.
It is a short block with extras. If your keeping it stock, i will discuss throwing in heads if yours are damaged. If your building it to extreme horsepower then your heads will be upgraded on your end.

hope that helps,

Jack Cammarata"
 
Id like an itemized bill, 12.5k what in the absolute hell.

So they have a donor motor? That they machine, then put these other parts they machine in it. Where the hell do they get 12.5k.

Edit : and it also sounds like they are pretty proud of the racket they have going on too. Dont ask them anything about it.
 
Id like an itemized bill, 12.5k what in the absolute hell.

So they have a donor motor? That they machine, then put these other parts they machine in it. Where the hell do they get 12.5k.

Edit : and it also sounds like they are pretty proud of the racket they have going on too. Dont ask them anything about it.
3k for parts, 3k for labor, and 6.5k for Bill Hewitt knowledge, and sealant......:look:

I like lamp...
 
So I know I am reviving this a little, but got to thinking about something as I just re-sealed a bed plate on a 6.0....

Taken straight from the article:

"Keith torques each crank-cradle bolt with 170 ft-lb. Unlike cylinder-head studs or other fasteners in the engine, there are no “steps” or increases for torque values."

Except there is a VERY SPECIFIC bed plate procedure and values that are very much stepped!!!

Step 1. Torque all bolts in sequence to 110lb/ft
Step 2. Torque all bolts in sequence to 130lb/ft
Step 3. Torque all bolts in sequence to 170lb/ft

More or less added this to the piston skirt hack job point.....I don't think I would ever use these guys for a motor. Might even use Ashville first...:wall:
 
I've never looked into it.....but couldn't you just make a 6.4 long block work?
 
You would have to drill out the 6.0 heads for the bigger studs the 6.4 take. The covers are drastically diffrent also.

I like lamp...
Is the high pressure fuel pump in the same spot as the 6.0 HPOP?
 
Discussion starter · #40 ·
I can't believe they want 12,500 for that. Why does their website say different?

False advertising is clearly going on here.

I hope another engine builder figures out the measurements and competes with them. I think this is something that has a demand and people are willing to buy this for competition and even a daily driver
 
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