What ’ s better than 18 degree cylinder head power ? How about 23 degree heads that deliver similar performance and let you reuse all of the small block Chevy parts you already have !

Designed for maximum power in 400 c . i . d . and bigger engines , Trick Flow Super 23 ^® 230 cylinder heads feature high fl ow 230cc intake ports and advanced CNC Competition Ported runners for supreme airflow and performance . Additional features include angled spark plugs , extra-thick decks and walls for custom porting , and raised valve cover rails to help keep your car out front pass after pass .

Dyno Results

Super 23 230

Airfl ow Results Super 23 230 with CNC Competition Ported Runners

Lift Value Intake Flow CFM Exhaust Flow CFM

Test Engine : 11.5:1 compression 406 c . i . d . with Trick Flow Super 23 ^® 230 cylinder heads ( TFS-3241T001-C03 ), mechanical roller camshaft ( 266 °/ 270 ° duration @ . 050 "; . 630 "/. 630 " lift ; 112 ° lobe separation ), Trick Flow 1.5 / 1.6 ratio roller rocker arms ( TFS-31400522 ), Edelbrock Super Victor intake manifold , Hooker Super Competition headers with 1 ⁷ ⁄ 8 " primaries , open exhaust .

. 700 " 310 240

Tests conducted at 28 " of water ( pressure ). Bore size : 4.155 "; exhaust with 1 ⁷ ⁄ 8 " pipe .

New heads are just one component of the horsepower recipe . To make it complete , you ’ re going to need some more ingredients .

Track Max ^® Camshafts

Give your small Chevy an even bigger power boost with a Track Max camshaft . Available in several fl at tappet and roller designs up to 246 °/ 254 ° duration and . 555 "/. 555 " of lift , they are dyno proven to produce significant power increases over the entire RPM range .

R-Series Intake Manifold

Catered to big cube small blocks making 600 + horsepower , the R-Series manifold is perfect for heads with 220cc or larger intake ports . The single plane , spider design maximizes fl ow and air / fuel distribution . A319 aluminum construction keeps it light and there ’ s plenty of material for custom porting . Integral bosses in each runner can be drilled and tapped for nitrous nozzles .

Cast Aluminum Valve Covers

Made from durable A319 cast aluminum , Trick Flow pent roof-style valve covers are less prone to fl ex than stamped steel covers , helping to prevent oil leaks . The 4 ³ ⁄ 16 " tall covers clear girdles and roller rockers , and can be drilled for breathers . Also important is the Trick Flow logo that shows everybody you ’ re serious about your car ’ s performance .

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Some parts are not legal for use in California or other states with similar laws / regulations . Please check your state and / or local laws / regulations .