#2610-0091 Hemi Roots blower Nitro. Here are some specs. on the camshaft. Camshaft journal 1-4 is 2.125" 54mm, journal 5 is 1.750" 44mm. Cam nose has 2.00" cam hub register with single .312" dowel pin. Three 3/8" counter bored bolt holes with 3/8-24 threads. RPM range 5500 thru 9500 rpm, .785" intake lift, .760" exhaust lift, valve lash .026" intake/exhaust hot, camshaft lift at valve zero lash .785" intake and exhaust .760". Duration @ .050" int. 292, exh. 296., lobe separation @ .050" int. 109, exh. 119.
#2610-0091A Hemi Roots blower Alcohol. Here are some specs. on the camshaft. Camshaft journal 1-4 is 2.125" 54mm, journal 5 is 1.750" 44mm. Cam nose has 2.00" cam hub register with single .312" dowel pin. Three 3/8" counter bored bolt holes with 3/8-24 threads. RPM range 6500 thru 10,500 rpm, .785" intake lift, .760" exhaust lift, valve lash .020" intake, .026" exhaust hot, camshaft lift at valve zero lash .785" intake and exhaust .760". Duration @ .050" int. 296, exh. 296., lobe separation @ .050" int. 111, exh. 117.
#2610-0091B Hemi Screw blower Alcohol. Here are some specs. on the camshaft. Camshaft journal 1-4 is 2.125" 54mm, journal 5 is 1.750" 44mm. Cam nose has 2.00" cam hub register with single .312" dowel pin. Three 3/8" counter bored bolt holes with 3/8-24 threads. RPM range 6500 thru 10,500 rpm, .785" intake lift, .770" exhaust lift, valve lash .026" intake, .026" exhaust hot, camshaft lift at valve zero lash .785" intake and exhaust .770". Duration @ .050" int. 296, exh. 302., lobe separation @ .050" int. 116, exh. 116.