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 Nex Tek 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