When it comes to high power 23 degree cylinder heads for small block Chevy engines, you can't do any better than Trick Flow Super 23® 230 heads. They are so good because they are the closest thing you can get to 18 degree cylinder head performance in a 23 degree design! Plus, the Super 23 230 heads use all standard small block valvetrain parts and headers saving you time and money when swapping heads.
Super 23 230 heads come standard with Trick Flow's advanced CNC Competition Ported runner design that features fully CNC-profiled combustion chambers and runners with a premium high resolution surface finish for maximum flow and performance. Additional highlights include angled spark plugs, extra-thick decks and walls for porting, and raised valve cover rails. Cylinder heads are available fully assembled or as bare castings. Sold individually.
Manufacturer's Part Number: TFS-3241T001-C03
Part Type: Cylinder Heads
Product Line: Trick Flow® Super 23® 230 Cylinder Heads for Small Block Chevrolet
Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Intake Valve Diameter (in): 2.080 in.
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 70
CNC-Machined Combustion Chamber: Yes
Intake Runner Volume (cc): 230cc
Exhaust Runner Volume (cc): 78cc
CNC-Machined Intake Runner: Yes
CNC-Machined Exhaust Runner: Yes
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): 0.680 in.
Outside Diameter of Outer Spring (in): 1.550 in.
Damper Spring Included: Yes
Number of Springs Per Valve: Dual
Retainers Included: Yes
Retainer Material: Titanium
Locks Included: Yes
Lock Style: 10 degree
Valve Stem Seals Included: Yes
Rocker Arm Studs Included: Yes
Rocker Arm Nut Thread Size: 7/16-20 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: Ductile iron
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: No
Quantity: Sold individually.
Notes: Must use head gaskets with 4.155 in. bore diameter.
