Trickflow Super 23 Cylinder Heads SBC 195cc Intake, 62cc Chambers, 1.470" Springs, Perimeter Bolt

Manufacturer's Part Number: TFS-30410002
Part Type: Cylinder Heads
Product Line: Trick Flow® Super 23® 195 Cylinder Heads for Small Block Chevrolet Cylinder Head
Style: Assembled Cylinder Head
Material: Aluminum
Intake Valve Diameter (in): 2.020 in.
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 62
CNC-Machined Combustion Chamber: No
Intake Runner Volume (cc): 195cc
Exhaust Runner Volume (cc): 75cc
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Combustion Chamber Style: Heart
Intake Port Shape: Rectangular
Intake Port Location: Standard
Exhaust Port Shape: D-port
Exhaust Port Location: Standard
Spark Plug Style: Angle
Intake Valves Included: Yes
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.600 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.540 in.
Outside Diameter of Outer Spring (in): 1.470 in.
Damper Spring Included: Yes
Number of Springs Per Valve: Single
Retainers Included: Yes
Retainer Material: Chromoly steel
Locks Included: Yes
Lock Style: 7 degree
Valve Stem Seals Included: Yes
Rocker Arm Studs Included: Yes
Rocker Arm Nut Thread Size: 3/8-24 in.
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: Yes
Guideplate Pushrod Size: 5/16 in.
Valve Cover Mounting Style: Perimeter bolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 23
Exhaust Valve Angle: 23
Valve Guides Included: Yes
Valve Guide Material: Bronze Valve
Seats Machined: Yes
Valve Seat Machine Style: 3-angle
Valve Seat Material: Tungsten
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: Yes
Quantity: Sold individually.

Notes: These heads only fit engines with a 4.000 in. bore or larger. Requires drilling steam holes into head-on 400 c.i. applications. CARB EO Number: D-747-1 (pdf) To see a list of qualifying vehicles, enter CARB EO Number D-747-1 Emissions: California EO Approved