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Trickflow Super 23 Cylinder Heads, SB Chevy, 195cc Intake, 62cc Chambers, 1.460" Dual Springs, Center Bolt

Bolt-on aluminum cylinder heads for the price of cast iron!
Dyno-tested on a 383 cu. in. engine, Trick Flow® 64cc Super 23 (TM) street/strip aluminum cylinder heads made 460 hp and 451 ft.-lbs. of torque, 40 more horsepower and 11 ft.-lbs. more torque than the same engine with GM L98 Corvette heads. The Trick Flow® Super 23 (TM) street/strip cylinder heads also made more power than Dart's Iron Eagle and World Product's Sportsman II cast iron heads. The Super 23 (TM) street/strip heads are direct-fit, high performance replacements for most original equipment factory heads and accept most factory accessories. They combine angled spark plugs, a choice of 62cc as-cast or 64cc and 72cc CNC-profiled combustion chambers, 2.020 in./1.600 in. stainless steel valves, hardened exhaust valve seats for unleaded gas, and 195cc intake ports with a high-velocity, small cross-section design to promote low-rpm torque without sacrificing higher rpm horsepower. The Super 23 (TM) street/strip heads are available with three spring sizes: 1.250 in. single for cams with up to .480 in. lift, 1.470 in. single for cams with up to .540 in. lift, and 1.460 in. dual for cams with up to .600 in. lift. They come fully assembled with valves, valve springs, locks, retainers, rocker arm studs, and guideplates. Cylinder head part numbers TFS-30400001, TFS-30400002, TFS-30400005, and TFS-30400006 are 50-state emissions-legal under CARB E.O. number D-369-4. Sold individually.
Was: $799.00
Sale: $665.00
Save: 17%
Save: $134.00

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Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
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
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
Intake Valve Diameter (in): 2.020 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.600 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.600 in.
Outside Diameter of Outer Spring (in): 1.460 in.
Damper Spring Included: Yes
Number of Springs Per Valve: Dual
Retainers Included: Yes
Retainer Material: Chromemoly steel
Locks Included: Yes
Lock Style: 7 degree
Valve Stem Seals Included: Yes
Valve Stem Seal Style: Viton® fluoroelastomer
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: Centerbolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 23
Exhaust Valve Angle: 23
Valve Guides Included: Yes
Valve Guide Material: Manganese 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: Designed to fit centerbolt-style intake manifolds.

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  • Item Requires Shipping
  • 40.0 lbs.
  • W12.0000” x H12.0000” x L24.0000”
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