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hardened spring seats and our one piece 8mm 21 4N Stainless Steel valves
IQ3 Display DashBlue backlight
19" Exhaust valve diameter: 1
AR234-2502
4G63 EVO 4-7 Cams | 4-TX272R Product:4G63 EVO 4-7 Cams | 4-TX272R hardened spring seats and ourThe ultimate 272 on the market. Dyno proven to be the best available to date. High lift profile design with high rpm valve train stability. Suited for 450 700hp high rpm racing engines. Suits turbo sizing in the 54 68mm range. Great with E85 and similar ethanol blend fuels. For up to 9500rpm and 40psi boost Kelford Cams recommend valve spring KVS63 BTK. Strip Drag Race Circuit Race Road Race Roll Race E85
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