426 Hemi we built on the dyno

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Brian Hafliger

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'69 426 Hemi, hyd. cam, all original except Diamond 10:1 pistons and Manley valves.
 

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Very nice. But I clicked on the pictures and couldn't hear anything. :(
 
It's all 69 specs except the cam is a MP hyd. that is real small...278 advertised. 10:1...it didn't make 500 but it was on it's way.
I'll post some graphs tomorrow.
Brian
 
Hemis are so impressive. They don't even have to run to be badass.
 
a friend has a 68 426 built to stock specs
...465 hp @ 6000 and still pulling
 
the Hemi in my silver Duster is close to stock....10.5 pistons, small bump over 71 Hemi grind Comp cam (over 20 yrs old)....light in weight, but a stocker.

saw 510 HP @5700....the cam holds em back, but for a coffee getter, it's OK

How do you like the Jegs windage tray, gasket combo. I just changed mine out because I put silicon on the rear main and timing cover seams....leaked like the Exon Veldez. It appears that was a dumb move because apparently the silicon filled up the oil stopage valley / groove????

I put one on a 383 build ...no leaky.

how did yours hold up for leakage??
 
the Hemi in my silver Duster is close to stock....10.5 pistons, small bump over 71 Hemi grind Comp cam (over 20 yrs old)....light in weight, but a stocker.

saw 510 HP @5700....the cam holds em back, but for a coffee getter, it's OK

How do you like the Jegs windage tray, gasket combo. I just changed mine out because I put silicon on the rear main and timing cover seams....leaked like the Exon Veldez. It appears that was a dumb move because apparently the silicon filled up the oil stopage valley / groove????

I put one on a 383 build ...no leaky.

how did yours hold up for leakage??

No leaks anywhere!
 
On the dyno:
 

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these engines on turbo setups are downright scary. seen one on youtube well over a thousand horse kept blowing passenger side air inlet tube off. about 600 or so hp at 5500 and climbing like crazy it would get so far blow off tube not sure of all number details but unreal and street legal too!
 
Short dyno video, didn't get a vid. of the 6500rpm pull as I thought we'd make more pulls but Daryl was happy and wanted to go home.

[ame]http://youtu.be/sDPp_6P2vC0[/ame]
 
My Engine builder had one on the dyno here with a Mopar performance cam in it with stock manifolds. It made 550 hp and 575 tq. A set of headers would of given it another 50 hp or so. those motors needed to breath.
 
My engine builder had one of them hemis with the two carburetors on the bottom of the engine, one on each side of the oil pan and it made...............................
 
Man that sounds awesome!


Those Hemis sound like they are making power without breaking a sweat....
 
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