GSC Power Division Billet S2 Camshaft Set (R35 GT-R) GSC 7000 Series Full Billet Camshafts are 100% in-house cut and ground on the newest, most precise CNC machines available. Â The 7000 Series camshafts take the import valve train market to another level, being the only readily available and... MSRP: $1,575.00 Was: Now: $1,499.98 Add to Cart