Improve your modified naturally aspirated drag racing engines with 308°/294° Stage 3 NA cams. Camshafts are designed to fit engines with ported heads, bigger valves, high flow intake and exhaust systems, and stroker bottom end with high compression pistons.
Our high performance cams work well with ethanol blend or methanol fuels, and you can keep NVCS/N-VCT variable intake cam timing with careful checking.
- Kelford Cams recommend KVS04 valve spring for best results.

TB48DE CAMSHAFTS
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264° Stage 1 NA performance cams to suit near stock TB48DE engines with bolt-on intake and exhaust upgrades. Good throttle response, improved low to mid-range power. Still maintains good drivability for street engines and towing. Retains NVCS / N-VCT variable intake cam timing.
- Kelford Cams recommend KVS04 valve spring.
272° Stage 1.5 NA performance cams to suit modified TB48DE engines with bolt-on intake and exhaust upgrades. Improved mid-range to high rpm power. Retains NVCS / N-VCT variable intake cam timing.
- Kelford Cams recommend KVS04 valve spring.
286° Stage 2 NA cams to suit performance naturally aspirated TB48DE engines. Improved high rpm power. Retains NVCS / N-VCT variable intake cam timing.
- Kelford Cams recommend KVS04 valve spring.
308°/294° Stage 3 NA cams to suit extremely modified naturally aspirated drag racing engines. Suits engines with ported heads, bigger valves and high flow intake and exhaust system. Stroker bottom end with high compression pistons. Fuel type ethanol blend or methanol. Can retain NVCS / N-VCT variable intake cam timing with careful checking.
- Kelford Cams recommend KVS04 valve spring.
264° Stage 1 Turbo cams for street and off road applications. Low overlap to suit boosted engines, either turbo or supercharged. Good throttle response, increase in mid-range power and good drivability for the street or towing. Suits turbo sizing 60-72mm. Retains NVCS / N-VCT variable intake cam timing.
- Kelford Cams recommend KVS04 valve spring.
278° Stage 2 Turbo cams for motorsport applications. More suited to mid-high rpm power. Designed to suit high HP TB48 competition engines running turbo sizing 70mm+. Retains NVCS / N-VCT variable intake cam timing.
- Kelford Cams recommend KVS04 valve spring
292°/302° Stage 3 Turbo cams to suit Pro drag racing engines. Fuel type E85 or methanol. 88mm+ turbo running high boost. Does not retain use of NVCS / N-VCT variable intake cam timing.
- Requires adjustable cam gears.