Trick Flow® GenX® 255 Cylinder Heads for GM LS3 TFS-3261T0002-C01
Cylinder Head, GenX® 255, CNC Comp Port, Assembled, 69cc CNC Chamber, 448 Lb. Springs, Ti Retain, GM LS3, Each
Includes new rocker arm rail mounts for use with LS3 1.7 ratio rocker arms. OEM rocker arm rail mounts will not work with these heads.