Complete Assembly
Material: RMR cast aluminum
Comb Chambers: 68cc
Intake Valve Dia: 2.165”
Intake Port volume: 280cc
Intake Port Dim: 2.600” x 1.260”
Intake Port Location: Stock LS3 location and bolt pattern
Intake Gasket: OE or Fel Pro - LS3
Exh Valve Dia.: 1.600”
Exh Port volume: 102cc
Exhaust Port Dim: 1.750” h x 1.550” w
Exh Port Location: Stock LS3 location and bolt pattern
Exhaust Gasket: OE or Fel Pro 1438
Flow, Intake: 370 cfm @ .800” lift / 28”
Flow, Exhaust: 252 cfm @ .800” lift / 28”
Manifold Accepts OE or aftermarket LS3 manifolds
Manifold Milling: .005”=1cc
Push Rod length: Always measure
Push rod Guide Plate: N/A
Retainers: Titanium
Spark Plug: Autolite AR3935
Spring Locators: 1.300” O.D.
Spring Pockets: 1.350” diameter (can go 1.550”) but no deeper on depth
Springs: 1.290” Beehive 120@1.800” 1.295” Dual 140@1.800”
(1.550” option)
Valve Length: 4.880”
Valve Stem Dia: 8mm
Valve Train: OE or aftermarket LS3 valvetrain
Valve Guides: .439” O.D.
Valve Guide length: 2.100”
Valve Guide clearance: .0015” - .002” (with our .3144” dia. valve stem)
Valve Guide Spacing: 2.013”
Valve Seats: Copper Infiltrated
Valve Seat dim: Int: 2.250” x 1.950” x .375” Exh: 1.650” x 1.280” x .375”
Valve Seat angles: Intake: 32°-45°-60°-70°-80° Exhaust: 37°-45°-radius
Stud Girdle: N/A
Torque: 8mm= 28 ft/lb w/ CMD #3 3/8” = 55 ft/lb w/ CMD #3
7/16”= 70 ft/lb w/ CMD #3 ½”= 105 ft/lb w/ CMD #3
Weight: 26lbs. Assembled
Block Use: LS style / 6 bolt per cyl
Priced as pair
Call 316-775-7771 to purchase.
WARNING: This product contains a chemical known to the State of California to cause cancer and reproductive harm. See https://www.p65warnings.ca.gov/ for details.
