Crane Camshaft Specification Card

 Part Number: 86H000005
Grind Number: H-234/315-2S-8
Engine Ident: 1966-91 AMERICAN MOTORS V8 290-401 CU.IN.
 
 
VALVE SETTING: INTAKE .000 EXHAUST .000 ----> HOT
LIFT: INTAKE @CAM 315 @VALVE 504 ROCKER ARM RATIO
EXHAUST @CAM 320 @VALVE 512 1.60
ALL LIFTS ARE BASED ON ZERO LASH AND THEORETICAL ROCKER ARM RATIOS
CAM TIMING OPENS CLOSES ADV DURATION
      @ .004 INTAKE 39.0 BTDC 77.0 ABDC 296 °
TAPPET LIFT EXHAUST 77.0 BBDC 43.0 ATDC 300 °
SPRING REQUIREMENTS
TRIPLE      DUAL       OUTER      INNER
PART NUMBER 
          99838

LOADS:

CLOSED  110 LBS  @ 1.688 OR 1 11/16
OPEN  320 LBS  @ 1.208
RECOMMENDED RPM
RANGE WITH MATCHING COMPONENTS
MINIMUM RPM 3000
MAXIMUM RPM 6500
VALVE FLOAT 7000
CAM TIMING OPENS CLOSES MAX LIFT DURATION
      @ .050 INTAKE 14.0 BTDC 40.0 ABDC 103 °ATDC 234 °
TAPPET LIFT EXHAUST 52.0 BBDC 6.0 ATDC 113 °BTDC 238 °
REMARKS:
 
 
 
 
 

 Crane Cams continuously improves and upgrades its cam designs. In some cases this may mean that two Crane Cams with the same part number may actually be different grinds. You must check the GRIND NUMBER stamped on the front of the camshaft and check it against the Grind Number near the top of the Spec Card. For more information on the finest available camshafts, valve train components, and automotive ignition products, visit your local Crane dealer or call the Crane Cams tech line at (904) 258-6174 or FAX (904) 258-6167.