All-new aluminum 1275 cylinder head, based on the 12G1805/12G940 late Cooper S head casting. 1.4" intake and 1.15" exhaust EN214N valves, with hardened valve seats, bronze guides. CNC ported and flowed for street performance. The sand cast finish can be painted to look like the original! Benefits include HP increase and improved cooling compared to a standard head.
Use with SGK0004 black composite or GEG0300 copper head gasket.
Please Note: Always check that alloy rocker covers clear the valve gear, and recheck each time the cover, cam or rocker gear is altered. Recommend that SEN0410 or SEN0411 ARP head stud kits be used, or at least fit thick flat washers on all head studs to prevent damage to the aluminum faces and for consistent torque. Torque head in increments of 15/30/40 foot pounds in recommended sequence. If fitting copper head gasket, ok to torque to 45 foot pounds. Torque special head bolt incrementally to 25#.
8/28/2019 2:00:00 AM
4/10/2019 2:00:00 AM