• Home
  • Chrysler SB 318 360 190cc 68cc CNC Hydraulic Roller Assembled Cylinder Heads

Chrysler SB 318 360 190cc 68cc CNC Hydraulic Roller Assembled Cylinder Heads

SKU: PCE281.2151

All Speedmaster alloy cylinder heads are made using a superior "gravity die" cast process. These heads are flow tested on a Superflow SF600 at 28 inches with a 1/2 inch radius intake plate and short stack exhaust tube.


Part Number:PCE281.2151
Part Type:Cylinder Heads
Cylinder Head Style:Assembled
Cylinder Head Material:Aluminum
Cylinder Head Finish:Natural
Combustion Chamber Volume (cc):68 cc
CNC-Machined Combustion Chamber:Yes
Intake Runner Volume (cc):190 cc
Exhaust Runner Volume (cc):n/a
CNC-Machined Intake Runner:Yes
CNC-Machined Exhaust Runner:Yes
Intake Port Shape:Standard Magnum
Intake Port Location:Standard
Exhaust Port Shape:Standard Magnum
Exhaust Port Location:Standard
Spark Plug Style:Standard
Comp. Valve Job:No
Intake Valves Included:Yes
Intake Valve Diameter (in):2.020 in.
Exhaust Valves Included:Yes
Exhaust Valve Diameter (in):1.620 in.
Valve Springs Included:Yes
Maximum Valve Lift (in.):0.580 in.
Outside Diameter of Outer Spring (in.):1.450 in.
Damper Spring Included:Yes
Number of Springs Per Valve:Dual
Retainers Included:Yes
Retainer Material:Chromoly Steel
Locks Included:Yes
Lock Style:10 Degree
Valve Stem Seals Included:Yes
Valve Stem Seal Type:Positive Stop
Rocker Arm Studs Included:No
Rocker Arms Included:No
Rocker Arm Nuts Included:No
Guideplates Included:No
Valve Cover Mounting Style:Perimeter Bolt
Accessory Bolt Holes Drilled:Yes
Intake Valve Angle:Standard
Exhaust Valve Angle:Standard
Valve Guides Included:Yes
Valve Guide Material:Bronze
Valve Seats Machined:Yes
Valve Seat Machine Style:3-angle
Valve Seat Material:Ductile iron
Steam Holes Drilled:No
Oiling Style:Through pushrod
Machined for O-Ring:No
Heat Crossover:No
Quantity:Sold as a pair.
CalculatorCompression Calculator