bajabob

comp cam 11-414-8 Roller 242IN 254 EX / 566IN 575EX i like to stay with wet if possible

paradigm shift

Well I am not the expert for sure but for what it is worth without more info on the motor this is going in I would not try it with stock exhaust for sure.

I did run a crane 139651 244 - 256 with CMI elbow tops with no trouble with reversion. Not saying it do not have any just did not cause any problems. There is a lot of variables to say what will and will not work besides just the cam.

I ended up going with another crane but I looked hard at the same cam you asked about. Curious what it is going in and how it works out.

KEPP

Well I can confirm that with a standard Bravo type wet system that we don't know of a way to accommodate these cam spec's at .050. A dry tail pipe system will work or a custom long tail pipe discharging water just prior to the transom may work . Caution make sure if someone says they can do it with a standard wet tail pipe that you have some recourse when/if it doesnt work and destroys your engine.

bajabob

thanks i been told that i have to go dry now i try to get headers that will fit my hole s

getrdunn

iTrader: (7)

Has anyone ever use this cam. I've always seen it around and looks OK with the exception of the higher duration. Just wondering???


Part Number: 134571 Grind Number: H-306-2 (REPLACES CCH-306-2)
Engine Identification:
Start Yr. End Yr. Make Cyl Description
1967 Up CHEVROLET 8 ROUGH IDLE, PERFORMANCE USAGE, GOOD UPPER RPM HP, BRACKET RACING, AUTO TRANS W/ 3500+ CONVERTER, MARINE PERFORMANCE, 4000-4400 CRUISE RPM, 10.5 TO 12.0 COMPRESSION RATIO ADVISED. BASIC RPM 3800-6800
Engine Size Configuration
396-454 C.I. V

Valve Setting: Intake .000 Exhaust .000 HOT

Lift: Intake @Cam 336 @Valve 571 All Lifts are based
on zero lash and theoretical rocker arm ratios.
Exhaust @ Cam 344 @Valve 585
Rocker Arm Ratio 1.70

Cam Timing: TAPPET @.0042
Lift: Opens Closes ADV Duration
Intake 44 BTDC 82 ABDC 306 °
Exhaust 92 BBDC 42 ATDC 314 °

Spring Requirements: Triple Dual Outer Inner
Part Number 99893
Loads Closed 130 LBS @ 1.850 or 1 27/32
Open 342 LBS @ 1.290
Recommended RPM range with matching components
Minimum RPM 3400
Maximum RPM 7000
Valve Float 7200

Cam Timing: TAPPET @.050
Lift: Opens Closes Max Lift Duration
Intake 16 BTDC 50 ABDC 107 246 °
Exhaust 64 BBDC 10 ATDC 117 254 °