In Stock
- All Items, Including Not In Stock (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Maximum Valve Lift (in.)
- 0.650 in. (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.625 in. (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Retainer Material
- Titanium (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Chromoly steel (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
In Stock

Selected Filters

Filters

Maximum Valve Lift (in.)
- 0.650 in. (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.625 in. (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Retainer Material
- Titanium (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Chromoly steel (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.

Trick Flow® GenX® 255 Cylinder Heads for GM LS3

4.0 out of 5 stars 7 Customer Reviews

Trick Flow engineers used the best features of OEM GM LS3 and LS7 cylinder heads, combined with their own race-winning engineering and technology, to create the Gen

Trick Flow engineers used the best features of OEM GM LS3 and LS7 cylinder heads, combined with their own race-winning engineering and technology, to create the GenX® 255—the ultimate ultimate square port LS cylinder head for 4.000" and larger bore engines. The heads feature fully CNC Competition Ported runners with a premium high resolution surface finish for maximum airflow and performance potential. Stock LS3 ports accommodate LS3-style intake manifolds and LS9/LSA blower assemblies. The valve angles have been changed from 15° to 12° to increase piston-to-valve clearance and allow the use of larger camshafts. The coolant holes through the head deck were redesigned to work with all LS head gasket and engine block combinations. GenX 255 heads are available with standard or 6-bolt per cylinder mounting patterns.

Trick Flow GenX 255 cylinder heads are emissions-legal under CARB E.O. #D-747 for 2007-present GM vehicles with 6.2L engines. They are available fully assembled or as bare castings. Sold individually.

All the results found for this search are Not In Stock.

Results 1 - 5 of 5