|
|
|
|
Original Message
|
| piston to valve clearance |
| By Greg Westphall - 12/13/2004 3:49:46 PM; IP 12.158.13.35 |
Does anyone know for sure if the following Crane cam has any piston to valve clearance issues. I am running stock rod length 428CJ short block with TRW forged 10.5:1 pistons with out of the box Edelbrock aluminum heads, 1.76:1 rockers, .040 compressed thickness head gaskets and the deck has been left alone except for a minor dusting to assure a flat surface and good seal.
Crane Part Number: 349521
This is a hydraulic Roller camshaft with the following specs:
Grind Number: HR-222/332-2S-10
352-428 C.I. V
Valve Setting: Intake .000 Exhaust .000 HOT
Lift: Intake @Cam 332 @Valve 584 All Lifts are based
on zero lash and theoretical rocker arm ratios.
Exhaust @ Cam 345 @Valve 607
Rocker Arm Ratio 1.76
Cam Timing: TAPPET @.004
Lift: Opens Closes ADV Duration
Intake 33.0 BTDC 71.0 ABDC 284.0 °
Exhaust 76.0 BBDC 34.0 ATDC 290.0 °
Recommended RPM range with matching components
Minimum RPM 2500
Maximum RPM 6000
Valve Float 6500
Cam Timing: TAPPET @.050
Lift: Opens Closes Max Lift Duration
Intake 6.0 BTDC 36.0 ABDC 105 222.0 °
Exhaust 49.0 BBDC (1.0) BTDC 115 228.0 °
Any feedback would be appreciated
Thanks,
Greg
|
|
|
This thread, so far...
|
|
|
|
Post A Response
|
|
|
|
|
|