Kelford Cams  272°/270° racing camshafts are suitable for modified NA Toyota 1UZ-3UZ VVTi engines with 10.5:1+ compression ratio. To fit these cams, you will need ITBs or a free flowing intake manifold, as well as a free flowing exhaust system. Designed for engines revving up to 8000rpm, and your cylinder head will need machining for clearance around the bucket bores for high lift cam lobes.

0.040" smaller than OEM base circle diameter, 33mm base circle diameter.

Please check piston to valve clearance, will require OEM piston valve pockets machined for extra clearance, or use of aftermarket racing pistons.

Additionally, you will need to upgrade your valve spring and retainer to seal clearance modification. For this, we recommend KVS1UZ valve spring.