Our Whipple supercharged, water-meth injected LS3 in the photo was installed in a GMC Syclone and featured by Dart on their booth at Holley's LS Fest.
Be sure to check out the video to actually look down the throat of the throttle body during a dyno pull with spray activated.
Needless to say, the Dart Pro1 heads we put on the Syclone got some extra love on our 5-axis CNC before we bolted them on.
To get to our website, please click the BUY IT NOW LINK where you will also find the fully assembled options.
Here are more details:
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LS3 Style cylinder head
Available Bare or Complete (call for options and pricing)
LS3 Exhaust port locations and bolt pattern
2.165-inch Intake Valve, 1.600-inch Exhaust Valve
RMR virgin heat treated 355-T61 cast aluminum material
280cc intake runners, 102cc exhaust runners
Accepts OEM or LS3 aftermarket intake manifolds
Accepts OEM or aftermarket LS3 valve-train
0.500-inch thick decks for stability in boosted and nitrous applications
Dart Says:
Our all-new Pro1 LS3 cylinder head features the latest in port and combustion chamber design. The company's investment in casting and tooling capabilities allows them to produce a cylinder head design that is unrivaled in the market.
Cylinder heads work on LS and LS Next-style blocks with a four or six-bolt configuration for maximum clamping ability.
Racing inspired combustion chamber improves flame propagation and increases air flow.
Dart has designed these as-cast cylinder heads to perform like ported cylinder heads--maximizing performance and minimizing your investment.
Part Number 110300000-11030153
Material RMR virgin heat treated 355-T61 cast aluminum
Combustion Chambers 68cc
Intake Valve Diameter 2.165-inch
Intake Port Volume 280cc
Intake Port Dimensions Stock LS3 location and bolt pattern
Intake Port Location Stock LS3 location and bolt pattern
Intake Gasket OE or Fel-Pro LS3
Exhaust Valve Diameter 1.600-inch
Exhaust Port Volume 102cc
Exhaust Port Dimensions 1.750-inch x 1.550-inch
Exhaust Port Location Stock LS3 port location and pattern
Exhaust Gasket OE or Fel-Pro 1438
Flow, Intake 370 cfm @ .800-inch lift, 28” water
Flow, Exhaust 252 cfm @ .800-inch lift, 28” water
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