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800 N/A Horsepower 9000 RPM 369" LS

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Old 12-21-2017, 09:18 AM
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Cool 800 N/A Horsepower 9000 RPM 369" LS
The guys at Venom Racing Engines just finished up this beauty for Bonneville:

369 Cubic Inch 15.8:1
Dart SHP Block
MAST Straight Jacket Heads
Callies Magnum Crank
Molnar Rods
CP Bullet Pistons
Cam Motion Low Lash Solid Roller Camshaft
Jesel Valvetrain
M & M Competition Intake
Daily Engineering Oiling




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Old 12-21-2017, 09:31 AM
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That thing screams, what is it going into?
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Old 12-21-2017, 09:51 AM
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One correction. The block is a Dart LS NEXT not an SHP version.
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Old 12-21-2017, 11:15 AM
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Glad to finally see results on this build.
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Old 12-21-2017, 11:16 AM
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Wicked
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Old 12-21-2017, 11:18 AM
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Oh and mast heads ftw :p
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Old 12-21-2017, 11:57 AM
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Originally Posted by big hammer
Wicked
This is a blueprint for your next engine.
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Old 12-21-2017, 12:05 PM
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Originally Posted by speedtigger
This is a blueprint for your next engine.
It has to clear my cowl though cause I’m a nerd that way
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Old 12-21-2017, 12:58 PM
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Originally Posted by big hammer
It has to clear my cowl though cause I’m a nerd that way
Holesaw

#Fixed
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Old 12-21-2017, 01:12 PM
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Oh that's the engine you being KCS had asked about over on YB.

Nice KIP!

Just add RPM Hammer and 800 is there with what you got now EASY.
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Old 12-21-2017, 09:11 PM
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Originally Posted by Patron
Oh that's the engine you being KCS had asked about over on YB.

Nice KIP!

Just add RPM Hammer and 800 is there with what you got now EASY.

I’ve got the torque for it. Just not the RPM
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Old 12-21-2017, 09:26 PM
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Outstanding Results!
Congratulations to all involved.

What is the Bore & Stroke Combo?
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Old 12-22-2017, 07:15 AM
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Good results! That magnum crank w/ a LLSR is the combo I been thinking about for a while.
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Old 12-22-2017, 11:13 AM
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NavyBlue here U are:

Dart LS Next Block 55mm Roller cam bearings. .937 bushed lifters
Finished in 4.030 bore
Callies Magnum XL (3.622 stroke)
Molnar Technologies 6.200 Rods
Custom CP pistons we spec'd 16.25:1 compression
DLC coated wrist pins
.9mm/.9mm/2.0mm ring pack
270/282 .801/.792 on a 112 lobe seperation Cam motion Camshaft
Jesel Belt Drive
Jesel .937 lifters
7/16 .165 wall trend dual taper pushrods
Dailey 5 stage billet dry sump (going to pull as much vacuum as we can)

Top end consits of

Mast Motorsports Str8jacket heads (390cfm/255cfm at .800 lift on 4.060 bore)
2.250/1.570 Trick Titanium Valves
50* seats

M&M competition engines sheet metal intake
Twin Accufab 6500 throttle bodies

http://www.yellowbullet.com/forum/sh....php?t=2263074
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Old 12-22-2017, 11:17 AM
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Originally Posted by NAVYBLUE210
Outstanding Results!
Congratulations to all involved.

What is the Bore & Stroke Combo?
It's 4.030" x 3.622", which is what peaked my interest in this. That's pretty good power for that small of a bore. I think this was the first real look at what those Mast Str8jacket heads can do.
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Old 12-22-2017, 11:20 AM
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KCS think about Dwill and the older model small bore Mast Ls7 heads did....on a 408 820fwhp @ 8100. Both cams are in the 270's with .800 lift. 15 to 1 compression. Darn good combos.
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Old 12-22-2017, 11:49 AM
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Originally Posted by KCS
It's 4.030" x 3.622", which is what peaked my interest in this. That's pretty good power for that small of a bore. I think this was the first real look at what those Mast Str8jacket heads can do.
Sorta explains why it only picked up ten horse in the final thousand RPMs of the pull as opposed to the hundred it gained from 7 to 8 grand
Willing to bet that a 4.155" X 3.25" combo would have acted differently with all else being equal
Still quite ridiculous to imagine those poor valve springs opening and closing 87 times PER second...
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Old 12-22-2017, 08:44 PM
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8000 is the new 7000
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Old 12-22-2017, 09:50 PM
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Nice setup and great numbers!
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Old 12-28-2017, 08:03 AM
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For those wanting to know all the details of this build, the Engine Labs article is out:
http://www.enginelabs.com/news/an-80...te-bonneville/
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