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06-25-2015, 08:44 AM
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#1 |
Drives: cam tech Join Date: Jun 2014
Location: baton rouge , la.
Posts: 30
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766 Horsepower! - New Dart LS3 Head and Cam Motion LLR!
There is a new player on the block in LS3 square port cylinder heads. Dart's new Pro1 LS3 as cast heads just laid down 766 FWHP in initial testing on the Engine Dyno with a Cam Motion Low Lash Solid Roller.
The engine is an 11:1 440" Stroker that averaged over 730 HP from 5500 all the way to 8000 RPM. The heads have a 280cc intake port, 68cc chambers, 2.165 intake valve and a 1.600 exhaust valve. They flow 370 cfm on the intake side and 252 cfm on the exhaust side. The cam is a modest lift Low Lash Solid Roller with very modest spring pressures of #145 seat and #411 open. Here is the press release graphic from Dart:  There is still more testing happening right now, so these HP #s just might get bigger. We expect to have these heads available soon on the Cam Motion website. |
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06-25-2015, 09:18 AM
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#2 |
           
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waaaaaaant
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06-25-2015, 12:43 PM
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#3 |
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Drives: 2010 2SS/RS LS3 A6 IOM Join Date: May 2013
Location: Arizona
Posts: 1,190
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What's the bore and stroke?
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06-25-2015, 01:26 PM
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#4 |
 Drives: 1970 Pontiac Firebird Join Date: Feb 2015
Location: Austin, TX
Posts: 30
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You know you can't post that picture and not get lots of questions, right? :-)
Could we see a full set of flow numbers? The 370 cfm seems to be a 0.8" number. Also, which intake is that, and can you share the cam specs to get to this number? Regardless, that's a nice headline number! Sent from my Nexus 7 using Tapatalk |
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06-25-2015, 01:52 PM
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#5 |
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Drives: cam tech Join Date: Jun 2014
Location: baton rouge , la.
Posts: 30
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I will see if f I can get a full flow sheet. Here are the rest of the technical specs:
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06-25-2015, 02:19 PM
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#6 |
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Drives: 2010 2SS/RS LS3 A6 IOM Join Date: May 2013
Location: Arizona
Posts: 1,190
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Will anyone be doing a Dart head comparison vs Frankenstein, or other aftermarket LS3 heads? Also, what will be the price point comparisons with other aftermarket LS3 heads?
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06-25-2015, 02:58 PM
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#7 |
Drives: ‘13 1LE Join Date: Jul 2013
Location: Earth
Posts: 3,904
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06-25-2015, 03:23 PM
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#8 |
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Drives: 2006 Z06 Join Date: Oct 2010
Location: Gilbert, AZ
Posts: 5,712
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Not sure what advantages if any these have on a setup like that. With a 440 LS7 style heads flow more and have been doing numbers like that for a long time. Now if these can work on a stock bore LS3 that is great, but even then small bore LS7 heads work great too.
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Nick
Corvette Z06 -1200ish rwhp |
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06-25-2015, 03:33 PM
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#9 | |
Drives: 2013 2SS/RS L99 Join Date: Oct 2012
Location: Denham Springs La.
Posts: 811
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Quote:
It should be 4.185" bore X 4.0" stroke. That's the norm.
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2013 2SS/RS L99/A6 Crystal Red Metallic Tincoat 12.76@108.98mph Bone Stock
12.46@111.19mph with New Era CAI & U/D Pulley 12.12 @ 114.16 after Stainless Power headers and no tune yet on stock P-Zero's! 12.007@ 115.20 With 18" Drag Radials - 11.93 @115.19 Added a PTB 11.76 @116.59 With Yank SS3200 Converter - 11.63 @116.52 After PI and Tuning 11.44 @118.75 New Best 10.72 @127.93 after heads and Cam and Yank SS3600 |
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06-25-2015, 04:17 PM
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#10 |
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Drives: camaro ss\rs Join Date: Jun 2014
Location: Italia
Posts: 755
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why with distributor?
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06-25-2015, 06:01 PM
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#11 | |
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Drives: 2010 2SS/RS LS3 A6 IOM Join Date: May 2013
Location: Arizona
Posts: 1,190
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Quote:
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06-25-2015, 08:14 PM
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#12 |
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I can't possibly imagine a price...20k? 30k?
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2013 VR Camaro 2SS/RS LS3
Small, but effective mod list: Roto-Fab Intake, TSP 2" Long tubes, TSP catless mids, MSD spark plug wires, stock catback, Elite Catch Can, APEX washer relocation and scoop, VMAX throttle body, Diablo InTune-Tuned by Matt@FSP, and a JacFab license plate bracket. |
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06-25-2015, 11:32 PM
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#13 |
 Drives: 2011 2ss/rs Join Date: Dec 2014
Location: hershey
Posts: 162
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Isn't a distributor ls motor expensive. Than normal ls engines
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06-26-2015, 03:26 AM
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#14 |
 Drives: bmw Join Date: Jun 2015
Location: m3
Posts: 3
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Will anyone be doing a Dart head comparison vs Frankenstein
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