Some parts are not legal for sale or use in California or other states with similar laws/regulations—see pg. 2 for details. WARNING: For Proposition 65 information, see pg. 2 Super 23® 195 Cylinder Heads for Small Block Chevrolet Trick Flow Super 23 195 cylinder heads for small block Chevy are a direct fi t, 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 fl ow 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. Cylinder heads are available fully assembled or as bare castings. Sold individually. Super 23 195 Heads, Fast As Cast Runners, Assembled 64cc CNC-Profi led Combustion Chambers TFS-30410001-M64 1.250" single springs, perimeter bolt valve covers, 195cc intake runners TFS-30410002-M64 1.470" single springs, perimeter bolt valve covers, 195cc intake runners TFS-30410003-M64 1.460" dual springs, perimeter bolt valve covers, 195cc intake runners TFS-30410005-M64 1.250" single springs, center bolt valve covers, 195cc intake runners TFS-30410006-M64 1.470" single springs, center bolt valve covers, 195cc intake runners TFS-30410007-M64 1.460" dual springs, center bolt valve covers, 195cc intake runners 72cc CNC-Profi led Combustion Chambers TFS-30410012-M72 1.470" single springs, perimeter bolt valve covers, 195cc intake runners TFS-30410013-M72 1.460" dual springs, perimeter bolt valve covers, 195cc intake runners TFS-30410014-M72 1.470" single springs, center bolt valve covers, 195cc intake runners TFS-30410015-M72 1.460" dual springs, center bolt valve covers, 195cc intake runners Specifi cations Material: A356-T61 aluminum Combustion Chamber Volume: 01/02/03/05/06/07: 62cc standard M64: 64cc CNC-profi led M72: 72cc CNC-profi led Intake Port Volume: 195cc Fast As Cast Intake Port Location: Stock Intake Port Dimensions: 1.280" x 2.090" Intake Gaskets: Fel-Pro 1205 or 1266 Intake Valve Diameter: 2.020" (TFS-51400211) Intake Valve Seat: Ductile iron (TFS-51400271) Exhaust Port Volume: 72cc Fast As Cast Exhaust Port Location: Stock Exhaust Port Dimensions: 1.350" x 1.500" D-shape Exhaust Gaskets: Fel-Pro 1404 Exhaust Valve Diameter: 1.600" (TFS-51400212) Exhaust Valve Seat: Ductile iron (TFS-51400272-1) Valve Angles: 23° Valve Guide Material: Bronze alloy (intake TFS-51400252-1, exhaust TFS-30400252-1) Valve Seals: Viton® fl uoroelastomer (TFS-51400454) Valve Seat Angles: 45° x multi-angle Valve Spring Pocket Diameter: 1.615"; 1.500" for two center valve springs Valve Spring Cups: 1.270" (TFS-31400433) 1.480" (TFS-51400434) Valve Spring Retainers: 7° x 1.250" o.d. chromoly steel (TFS-31400423) 7° x 1.460" o.d. chromoly steel (TFS-31400424) 7° x 1.470" o.d. chromoly steel (TFS-51400423) Valve Stem Locks: 7° machined steel (TFS-51400444) Valve Springs, Standard: 1.250" o.d. single spring with damper (TFS-16314-16) 110 lbs. @ 1.780" installed height 300 lbs. @ 1.280" open 360 lbs. per inch rate .520" maximum valve lift Valve Springs, Option 1: 1.470" o.d. single spring with damper (TFS-16514-16) 118 lbs. @ 1.800" installed height 300 lbs. @ 1.280" open 360 lbs. per inch rate .540" maximum valve lift Valve Springs, Option 2: 1.460" o.d. dual spring with damper (TFS-16315-16) 134 lbs. @ 1.800" installed height 405 lbs. @ 1.200" open 452 lbs. per inch rate .600" maximum valve lift Guideplates: 5/16" (TFS-30400623-8) Rocker Arm Studs: 3/8" (TFS-51400613) Rocker Arms: TFS-31400510 (1.5 ratio, 3/8" studs) TFS-31400511 (1.6 ratio, 3/8" studs) Minimum Bore Diameter: 4.000" Cylinder Head Bolts: TFS-92000 Head Gaskets: TFS-30494060-040 Pushrod Length: Longer than stock required Spark Plugs: NGK FR5 or Autolite 3924 NOTE: Must use Fel-Pro 1014 head gaskets with predrilled steam holes for 400 c.i.d; must modify heads per instructions. Viton® is a registered trademark of DuPont Performance Elastomers. Dyno Results Super 23 195 Test Engine: 10:1 compression 383 c.i.d. with Trick Flow Super 23® 195 cylinder heads (TFS-30410013-M72), Trick Flow Track Max® hydraulic roller camshaft (TFS-31402002), Trick Flow 1.5 ratio roller rocker arms (TFS-31400510), Edelbrock Victor Jr. intake manifold, Hooker headers with 13⁄4" primaries, 3" dual exhaust with Flowmaster muffl ers. Airfl ow Results Super 23 195 with 72cc CNC-Profi led Chambers Lift Value Intake Flow CFM Exhaust Flow CFM .100" 71 53 .200" 142 99 .300" 196 135 .400" 234 167 .500" 249 186 .600" 249 199 Tests conducted at 28" of water (pressure). Bore size 4.030". CNC-profi led combustion chambers; exhaust with 13⁄4" pipe. TFS-30410015-M72 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. Cylinder heads are available fully assembled or as bare castings. Deck Surface
