AFR 210 Enforcer Cylinder Heads for the LS1 feature Permanent Mold “As-Cast” Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. This budget friendly head is perfect for your OEM engine operating below 6300 RPM. They come fully assembled with the identical components found in higher end CNC ported cylinder heads; including PAC Racing springs, viton valve seals, machined bead valve locks, hardened spring seats and ductile iron seats in addition to one piece 8mm 21-4N stainless steel valves. They are available bare if you prefer to set them up in-house. Sold as a single piece, 2 are required per engine. Please see footnotes for additional information.
