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Trickflow CNC Ported 235cc
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Trick Flow GenX (TM) Street/Strip 235 Cylinder Heads for GM LSXCylinder Head, GenX Street/ Strip CNC, Aluminum, Assembled, GM, LS, Pair
| Cylinder Head Style: |
Assembled |
| Cylinder Head Material: |
Aluminum |
| Cylinder Head Finish: |
Natural |
| Combustion Chamber Volume (cc): |
70 |
| CNC-Machined Combustion Chamber: |
Yes |
| Intake Runner Volume (cc): |
235cc |
| Exhaust Runner Volume (cc): |
86cc |
| CNC-Machined Intake Runner: |
Yes |
| CNC-Machined Exhaust Runner: |
Yes |
| Intake Port Shape: |
Cathedral |
| Intake Port Location: |
Standard |
| Exhaust Port Shape: |
Oval |
| Exhaust Port Location: |
Standard |
| Intake Valves Included: |
Yes |
| Intake Valve Diameter (in): |
2.080 in. |
| Exhaust Valves Included: |
Yes |
| Exhaust Valve Diameter (in): |
1.600 in. |
| Valve Springs Included: |
Yes |
| Maximum Valve Lift (in): |
0.650 in. |
| Outside Diameter of Outer Spring (in): |
1.300 in. |
| Damper Spring Included: |
No |
| Number of Springs Per Valve: |
Dual |
| Retainers Included: |
Yes |
| Retainer Material: |
Titanium |
| Locks Included: |
Yes |
| Lock Style: |
7 degree |
| Valve Stem Seals Included: |
Yes |
| Valve Stem Seal Style: |
Viton® fluoroelastomer |
| Rocker Arm Studs Included: |
No |
| Rocker Arms Included: |
No |
| Rocker Arm Nuts Included: |
No |
| Guideplates Included: |
No |
| Valve Cover Mounting Style: |
Centerbolt |
| Accessory Bolt Holes Drilled: |
Yes |
| Intake Valve Angle: |
13.5 |
| Exhaust Valve Angle: |
13.5 |
| Valve Guides Included: |
Yes |
| Valve Guide Material: |
Bronze |
| Valve Seats Machined: |
Yes |
| Valve Seat Machine Style: |
3-angle |
| Valve Seat Material: |
Ductile iron |
| Steam Holes Drilled: |
No |
| Oiling Style: |
Through pushrod |
| Machined for O-Ring: |
No |
| Heat Crossover: |
No |
| Quantity: |
Sold as a pair. |
| Notes: |
These cylinder heads are not designed as a stock replacement, they can only be used on LS-based engines with a minimum bore diameter of 4.030 in. Must be used with roller rocker arms. | 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. Testing also proved that relocating the spark plug position in the combustion chamber further enhanced combustion along with mid lift airflow and improved the integrity of the casting in the chamber area. Trick Flow also added additional material to the decks (.600") and to the rocker arm mounting pads to improve high rpm valve train stability.
Assembled heads come equipped with stainless steel intake and exhaust valves, 1.300" dual extreme pressure (150# seat 450# open) valve springs for lifts up to .650", viton seals, machined spring locators, 7 degree titanium retainers and machined steel locks.
Designed for 4.125" bore applications this head is designed to flow tons of air through the mid-lifts. Using a 2.080" intake valve with a 235cc port volume we have achieved LS-7 type flow numbers from .3-.5. This head also incorporates a new 86cc exhaust port that uses a 1.600" valve designed for larger cubic inch applications. Combustion chamber comes standard at 70cc.
Note: A roller tipped rocker and .100” longer than stock pushrod is required with these heads. Minimum recommended bore size is 4.030".
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Base Price: $2,399.00 Customized Price: $2,399.00 Your Kit Is Ready To Purchase!
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