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First Sleeved 6.1L HEMI!

Old 12-08-2006, 02:30 PM
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Thumbs up First Sleeved 6.1L HEMI!

Here is a photo of the very first Darton MID sleeved 6.1L Hemi block. The sleeving was done by Race Engine Development, and the engine was later built into a 426ci by Superior Automotive.
Attached Thumbnails First Sleeved 6.1L HEMI!-hemimid.jpg  
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Old 12-08-2006, 03:40 PM
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Looks great! hopefully we will see some big power out of these!
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Old 12-08-2006, 09:40 PM
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Default More info on Hemi MID

I attached a few more photos showing the machine work and a detailed shot of the MID sleeve flange and it's fitment into the block.

Bore size is 4.140" with a stroke length of 3.960" yielding 426 cubic inches.

The engine is running great, better than expected power output, no leaks, no problems at all. Thus far with conservative tune and only eight pounds of boost it is putting out close to 700 hp at the rear wheels. Car is being street driven to break in the engine. More boost will follow.

Attached Thumbnails First Sleeved 6.1L HEMI!-hemi-flange-machining.jpg   First Sleeved 6.1L HEMI!-hemi-mid-sleeve-seat-machin.jpg   First Sleeved 6.1L HEMI!-hemi-mid-sleeve-detail.jpg  
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Old 12-14-2006, 03:25 PM
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A lot of people will be glad to see this.

Good work guys.
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Old 12-15-2006, 08:35 AM
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so what are the max bore and stroke capabilities?
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Old 12-15-2006, 10:08 AM
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Thats cool but...What Im anxiously waiting is more aftermarket for the SRT8.....we get no love so far!!
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Old 12-15-2006, 10:45 AM
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I was wondering the same thing.
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Old 12-17-2006, 09:52 AM
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A 426 is about the max you can go. So far, we have taken the 6.1 and made a 392 and a 414 from it. We have taken the 5.7 and made a 366 as well. These new strokers really lay down some torque.
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Old 12-19-2006, 06:54 AM
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If you could get the bore out to 4.156", you could use our 4.050" stroke crank and have a 440.
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Old 12-19-2006, 09:39 AM
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Sounds like just the ticket for my new 07 CSRT...
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