Trick Flow Super 23?? 195 cylinder heads for small block Chevy are a direct fit, high performance replacement for factory heads and accept most original accessories. Ideal for 302- 406 c.i.d. engines, these heads feature high-velocity, small cross-section intake runners to promote low-rpm torque and high-rpm horsepower. Fast As Cast?? runners deliver near-CNC-ported flow and performance for about the same price as regular cast heads. Angled spark plugs, raised valve cover rails, and extra-thick decks and walls for porting round-out the features.
Super 23 195 heads are emissions-legal under CARB E.O. #D-747-1 for 1995 and earlier GM vehicles with Chevy 262-350 engines. They are available fully assembled or as bare castings. 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.
Features
- Cylinder Head Style:
- Assembled
- Cylinder Head Material:
- Cast aluminum
- Cylinder Head Finish:
- Natural
- CNC-Machined Combustion Chamber:
- No
- Combustion Chamber Volume (cc):
- 62cc
- Combustion Chamber Style:
- Heart
- CNC-Machined Intake Runner:
- No
- Intake Runner Volume (cc):
- 195cc
- Intake Port Shape:
- Rectangular
- Intake Port Location:
- Standard
- Intake Valve Angle:
- 23 degree
- CNC-Machined Exhaust Runner:
- No
- Exhaust Runner Volume (cc):
- 75cc
- Exhaust Port Shape:
- D-port
- Exhaust Port Location:
- Standard
- Exhaust Valve Angle:
- 23 degree
- Intake Valves Included:
- Yes
- Intake Valve Diameter (in.):
- 2.020 in.
- Exhaust Valves Included:
- Yes
- Exhaust Valve Diameter (in.):
- 1.600 in.
- Valve Type:
- Stainless
- Maximum Valve Lift (in.):
- 0.600 in.
- Valve Springs Included:
- Yes
- Valve Spring Type:
- Dual W/Damper
- Outside Diameter of Outer Spring (in.):
- 1.460 in.
- Valve Guides Included:
- Yes
- Valve Guide Material:
- Bronze
- Valve Seats Machined:
- Yes
- Valve Seat Material:
- Ductile iron
- Valve Seat Machine Style:
- 3-angle
- Retainers Included:
- Yes
- Retainer Material:
- Chromoly
- Valve Stem Seals Included:
- Yes
- Valve Stem Seal Style:
- Viton Positive Stop
- Locks Included:
- Yes
- Lock Style:
- 7 degree
- Camshaft Style:
- Hydraulic Roller
- Spark Plug Style:
- Angled
- Guideplates Included:
- Yes
- Guideplate Pushrod Size:
- 5/16 in.
- Rocker Arm Studs Included:
- Yes
- Rocker Arm Nut Thread Size:
- 3/8-24 in
- Accessory Bolt Holes Drilled:
- Yes
- Valve Cover Mounting Style:
- Perimeter bolt
- Heat Crossover:
- Yes
- Steam Holes Drilled:
- No
- Oiling Style:
- Through head
- Machined for O-Ring:
- No
- Quantity:
- Sold individually.
- Notes:
- 14mm Spark Plug, .750 Reach, 5/8 Hex
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen I
- Engine Sizes:
- 4.9L/302-6.6L/400
- Years:
- 1962-1986
