Dart Pro 1 Ls3 Heads Bare Pn-11030050 Ls1 Ls2 Ls3 Lq4 Ls7 Ls9 Lq9 Lsx Rhs on 2040-parts.com

LS3 Style cylinder head
Available Bare        PN 11030050  $1659.00

Available complete  PN 11030153  $2559.00              

Complete assembled with stainless valves and 1.295 dual valve springs

Also available with Manley Stainless, Inconel or Titanium Valves and any spring Manley NexTek Pac or comp Just give us a call for 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'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.

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 LS3 LSX RHS 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

If you have any questions just give us a call 203-234-7459

Thanks, Dave at DGRE