Trickflow Super 23® Cylinder Heads, Sb Chevy, Cnc Competition Ported 230cc Intake, Titanium Retainers

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.

Install Instructions