We can sell these head assembled with better than Dart parts and blueprinted to your cam or our custom cams for around same price or less than the Dart assembled part number! Dart LS Next block and added nitrous. Engine Labs online magazine ran the story as a tech feature.
QUICK OVERVIEW 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 Details Dart's 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. Assembled cylinder heads are available with 1.290-inch beehive or 1.295-inch dual valve springs to suit nearly any application. The valve seats feature a five-angle design for the intake valve and a three-angle design for the exhaust valves to promote excellent flow.
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.
Internal testing with these cylinder heads prove they are capable of well over 1,000 horsepower and 1,000 pound feet of torque. The item "NEW DART LS3 ALUM HEADS (HIGHEST FLOWING LS3 370CFM UNPORTED) 6-BOLT OR 4-BOLT" is in sale since Friday, August 14, 2015. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts". The seller is "custom_engine_supply" and is located in Angola, Indiana. This item can be shipped worldwide.