274 NR Racing Series Camshaft - GX200, 6.5 OHV, & 212 Predator CHOOSE GRIND
274 (F200) Series: Radical Cam Grind for F200 Series and Super Box Stock
Approximately .274 lift and 260 duration. Square lobe design to maximize valve opening time. While meant to use with larger carbs, it actually works very well with smaller carbs by holding open the valve as long as possible with reduced lift to maximize velocity. Honda blocks may need clearance to install. Dual springs recommended (37lb will work, but will limit RPM to 7500).
Approximately .274 lift and 260 duration. Square lobe design to maximize valve opening time. While meant to use with larger carbs, it actually works very well with smaller carbs by holding open the valve as long as possible with reduced lift to maximize velocity. Honda blocks may need clearance to install. Dual springs recommended (37lb will work, but will limit RPM to 7500).
Cam Options:
Camshaft 274-0207: Super high torque. Use for small to medium tracks. 4500 to 7500rpm range. 11-to-1 or higher compression ratio required. DESIGNED TO GET YOU OFF THE CORNERS. OUR # 1 SELLER.
Camshaft 274-0211: Same as our 0207, but with wider torque curve. Works best on engines using 10.5-to-1 or less compression. Great for road racing and marine applications.
Camshaft 274-0607: 8500rpm. 12-to-1 or higher compression ratio required. Big track cam. Warning: may cause traction problems. Use with 1.2 billet steel rockers for maximum power.
Camshaft 274-1007: 9000+RPM. 12-to-1 or higher compression ratio required. Recommended for serious competition. Use for large ovals or where traction is a problem. Dual springs required.
*Note: Honda blocks may require clearance to clear camshaft lobes.
