There ’ s no place for middle of the road in high performance . That ’ s why Trick Flow developed CNC-ported GenX ® series cathedral port cylinder heads for GM LS engines . Trick Flow altered the valve angles to 13.5 ° to decrease valve shrouding , increase airflow , and improve piston-to-valve clearance with stock pistons . Relocating the spark plugs boosts mid-lift airflow and improves combustion efficiency , and extra material at the rocker arm mounting points enhances high-RPM valvetrain stability . Trick Flow ’ s top-of-the-line CNC Competition Ported runner treatment delivers large amounts of smooth moving airfl ow for making big power . GenX CNC-ported cylinder heads are offered in 205cc , 215cc , 225cc , 235cc , and 245cc intake port sizes . A 6-bolt mounting pattern is available on GenX 235

( standard on GenX 245 ) for extremely high compression , high boost applications .

Dyno Results GenX 225

Airfl ow Results GenX 225

Lift Value Intake Flow CFM Exhaust Flow CFM

Test Engine : GM 6.0L LS2 short block with 10.86:1 compression , Trick Flow GenX 225 cathedral port cylinder heads ( TFS-3060T001-C02 ), Track Max hydraulic roller cam ( TFS-30602004 ), stock intake manifold with 90mm throttle body , Kooks headers with 1 3 ⁄ 4 " primaries , and dual exhaust with 3 " Flowmaster mufflers .

. 600 " 338 245

Tests conducted at 28 " of water ( pressure ). Bore size : 4.000 "; exhaust with 1 7 ⁄ 8 " pipe .

New heads are just one component of the horsepower formula . To make it complete , you ’ re going to need some other components .

Track Max ® Camshafts

Give your GM LS an even bigger power boost with a Track Max camshaft . Available in several hydraulic roller designs up to 230 °/ 238 ° duration and . 625 "/. 625 " of lift , they are dyno proven to produce significant power increases over the entire RPM range .

Active Fuel Management and Variable Valve Timing Delete Kits

The problem : most performance camshafts don ’ t work on engines equipped with AFM or VVT . The solution ? Ditch them with these delete kits ! They include everything to completely remove AFM and VVT the right way , so your engine will make the power you expect with no hiccups .

Cylinder Head Bolt Kits

Keep combustion where it belongs ! These high-quality cylinder head bolt kits provide consistent clamping force . The bolts are made from premium quality alloy steel with cold-formed heads and rolled threads . The kit contains all the bolts you need to install a pair of heads .

Trick Flow pays contingency in the NHRA on all Trick Flow cylinder heads , and in the NMCA and NMRA on all Trick Flow cylinder heads and intake manifolds .

2311DUTF

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 .