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.You don’t cut corners or accept compromises.
Use the best parts, like Trick Flow GenX® 255 square
port cylinder heads that can signifi cantly increase the
performance of your GM LS-powered car.
Highlights include LS3-shaped CNC Competition
Ported runners, CNC-profi led combustion chambers,
12° valve angles, coolant holes that work with all LS
head gaskets and engine blocks, and your choice of
standard or 6-bolt mounting patterns—all engineered,
machined, assembled, durability tested, and
dyno proven in the USA to help your car stay
ahead of the pack.
Put the Hammer Down.
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.
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.
Track Max® Camshafts
Give your LS an even bigger power boost with a Track Max camshaft.
They are dyno-proven to produce signifi cant power increases over the
entire RPM range, not just a particular RPM.
Your Recipe for GM LS Performance!
New heads are just one component of the horsepower recipe.
To make it complete, you’re going to need some more ingredients.
Dyno Results
GenX 255 Square PortTest Engine: GM 6.2L LS3 short block with 10.43:1 compression, Trick Flow GenX® 255
square port cylinder heads (TFS-3261T002-C01), Trick Flow Track Max® hydraulic roller
cam (TFS-32603001), stock L92 intake with 90mm throttle body, Kooks headers with
17 ⁄ 8 " primaries, and dual exhaust with 3" Flowmaster muffl ers.Airfl ow Results
GenX 255 Square Port
Lift Value Intake Flow CFM Exhaust Flow CFM
.100" 71 59
.200" 146 113
.300" 231 171
.400" 294 215
.500" 334 240
.600" 363 252
.700" 382 258
Tests conducted at 28" of water (pressure).
Bore size: 4.065"; exhaust with 2" pipe.
To view more airfl ow charts, go to TrickFlow.com and type the part number
you want to see into the Search box and then click “Search.”1910SZTFTrickFlow.com • 1-330-630-