280° high HP racing cams to suit well built time attack and drag racing 4G63 engines. Suits 64mm+ turbo. Great with E85 and similar ethanol blend fuels.
- For up to 9000rpm and 40psi boost Kelford Cams recommend valve spring KVS63-BTK-X

4G63 EVO 8 CAMSHAFTS
View Kelford Cams Range
258° cams for fast street engines with stock turbo or turbocharger upgrade. Suits upgraded turbo sizing 48-54mm. Improved low to mid-range power and good throttle response. Great for restrictor plate rally 4G63 engine.
For up to 8000rpm and 25psi boost Kelford Cams recommend valve spring KVS63
268° cams for street, strip and track engines in the 350-600hp range. Great with E85 and similar ethanol blend fuels. Suits 48-58mm turbo. Still maintains good throttle response, improved mid-range power. For up to 8000rpm and 35psi boost Kelford Cams recommend valve spring KVS63-BTK.
272° camshaft designed to work with OEM valve springs. Rough idle note with exhaust upgrade. Increase in mid-high rpm power with upgraded turbo. Upgraded turbo size range 48-58mm compressor inducer. For high mileage engines Kelford Cams recommend valve spring KVS63-BK which uses the OEM retainer.
Best all round performing motorsport cams. Suits racing 4G63 engine in the 400-650hp range. 54-62mm turbo size range. For up to 8500rpm and 35psi boost Kelford Cams recommend valve spring KVS63-BTK.
The ultimate EVO 8 272° camshaft 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 4G63 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.
272°/278° racing cams for 4G63 engines in the 400-650hp range. 54-62mm turbo size. Great with E85 and similar ethanol blend fuels. For up to 8500rpm and 35psi boost. Kelford Cams recommend valve spring KVS63-BTK.
280° high HP racing cams to suit well built time attack and drag racing 4G63 engines. Suits 64mm+ turbo. Great with E85 and similar ethanol blend fuels. For up to 9000rpm and 40psi boost Kelford Cams recommend valve spring KVS63-BTK-X
288° high HP cams to suit professionally built 4G63 racing engines. Suits 68mm+ turbo. Great with E85 and similar ethanol blend fuels. Kelford Cams recommend valve spring KVS63-EXTREME
294° drag racing cams for extreme boost and high RPM engines. Turbo sizing 76mm+. Fuel type ethanol blend or methanol. Kelford Cams recommend valve spring KVS63-EXTREME.