Trick Flow 215 LS Cylinder Heads

September 25, 2020 by  
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GM’s LS engines are the hottest thing to hit the scene since Chevy debuted the first smallblock
back in 1955. But even the mighty LS can be improved—that’s why TrickFlow has developed a cathedral port cylinder head that significantly increases theperformance of late model GM LS-powered musclecars and trucks. During the development stage, Trick Flow engineers determined that the valve angles needed to change from 15* to 13.5*. This change decreased valve shrouding,increased mid-lift airflow,and increased rocker arm-to-valve cover clearance.It also adds additional piston to valve clearance. Testing verified that material added at the rockerarm mounting points increases high-rpm valvetrain stability and relocated spark plugs in the combustion chambers enhances mid-liftairflow and combustion. They also increased the rigidity of the casting for extreme horsepower applications by adding a 5/8″ deck thickness. These 215cc heads are specifically designed for the 3.900″ bore LS1 engines, they are fully CNC ported.These heads are the most powerful you can buy for the 5.7’s and have produced 500+ rwhp on many cars.
Material: A356-T6 Aluminum
Combustion Chamber Volume: 64cc CNC-profiled
Intake Port Volume: 215cc CNC Ported
Intake Port Location: Stock
Intake Port Dimensions: Stock Gm
Intake Valve Diameter: 2.040″
Intake Valve Seat: Interlocking Ductile iron
Exhaust Port Volume: 80cc CNC Ported
Exhaust Port Location: Stock
Exhaust Port Dimensions: 1.6250″ x 1.500″
Exhaust Gaskets: Stock Gm
Exhaust Valve Diameter: 1.575″
Exhaust Valve Seat: Ductile iron
Valve Guide Material: Bronze alloy
Valve Seals: Viton® fluoroelastomer
Minimum Bore Diameter: 3.900″
Cylinder Head Bolts: arp-134-3609 or 12498545
Spark Plugs: ngk-tr6
Valve Covers: OE bolt pattern,raised 0.200″
Lift Intake Exhaust
0.100 69 56
0.200 146 130
0.300 237 201
0.400 294 249
0.500 336 269
0.550 348 273
0.600 353 276
* Tests conducted at 28″ of water, 4.155″ bore, 1.875″ pipe

Additional information

Weight 65 lbs


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