cam selection
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Senior User
Joined: Feb 2004
Posts: 295
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From: conway arkansas
cam selection
first off i'd like to thank yall for all the help on this project so far, my question this time is what cam to use, i have been told the one i have wont work so good with the dynamic compression on pump gas, (read camel ****), its a crane 133042 cam, my motor has the tmi zero deck pistons with a mild port job on the 2bbl heads with screw in studs and alunaman roller rockers, what i'm wantin to do with this motor is just drive it daily, it will go into a 72 f-100 with a c-6 and 3.50 gears, also it'll have a weiend manifold with a 750 and coated headers, all of which i've already bought or acquired through bargaining, what do yall think, should i find a cam with more overlap or what, thanks
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Joined: Dec 2001
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From: Louisville,Ky.
Part Number: 133042 Grind Number: 272 H10
Engine Identification:
Start Yr. End Yr. Make Cyl Description
1970 1982 FORD-MERCURY 8 GOOD IDLE, DAILY USAGE, OFF ROAD, HIGHWAY TOWING, FUEL EFFICIENCY PLUS PERFORMANCE, GOOD MID-RANGE TORQUE AND HP, 2600-3000 CRUISE RPM, 8.75 TO 10.0 COMPRESSION RATIO ADVISED. BASIC RPM 2000-5000
Engine Size Configuration
351-351C C.I. V
Valve Setting: Intake .000 Exhaust .000 HOT
Lift: Intake @Cam 3027 @Valve 524 All Lifts are based
on zero lash and theoretical rocker arm ratios.
Exhaust @ Cam 3027 @Valve 524
Rocker Arm Ratio 1.73
Cam Timing: TAPPET @.004
Lift: Opens Closes ADV Duration
Intake 27 BTDC 65 ABDC 272 °
Exhaust 67 BBDC 25 ATDC 272 °
Spring Requirements: Triple Dual Outer Inner
Part Number 96801
Loads Closed 114 LBS @ 1.800 or 1 13/16
Open 269 LBS @ 1.300
Recommended RPM range with matching components
Minimum RPM 1600
Maximum RPM 5200
Valve Float 5800
Cam Timing: TAPPET @.050
Lift: Opens Closes Max Lift Duration
Intake 3 BTDC 33 ABDC 105 216 °
Exhaust 43 BBDC
It should be ok. But with any performance cam, you should check it with silly putty to verify clearance. Do your pistons have valve reliefs cut in them?
Engine Identification:
Start Yr. End Yr. Make Cyl Description
1970 1982 FORD-MERCURY 8 GOOD IDLE, DAILY USAGE, OFF ROAD, HIGHWAY TOWING, FUEL EFFICIENCY PLUS PERFORMANCE, GOOD MID-RANGE TORQUE AND HP, 2600-3000 CRUISE RPM, 8.75 TO 10.0 COMPRESSION RATIO ADVISED. BASIC RPM 2000-5000
Engine Size Configuration
351-351C C.I. V
Valve Setting: Intake .000 Exhaust .000 HOT
Lift: Intake @Cam 3027 @Valve 524 All Lifts are based
on zero lash and theoretical rocker arm ratios.
Exhaust @ Cam 3027 @Valve 524
Rocker Arm Ratio 1.73
Cam Timing: TAPPET @.004
Lift: Opens Closes ADV Duration
Intake 27 BTDC 65 ABDC 272 °
Exhaust 67 BBDC 25 ATDC 272 °
Spring Requirements: Triple Dual Outer Inner
Part Number 96801
Loads Closed 114 LBS @ 1.800 or 1 13/16
Open 269 LBS @ 1.300
Recommended RPM range with matching components
Minimum RPM 1600
Maximum RPM 5200
Valve Float 5800
Cam Timing: TAPPET @.050
Lift: Opens Closes Max Lift Duration
Intake 3 BTDC 33 ABDC 105 216 °
Exhaust 43 BBDC
It should be ok. But with any performance cam, you should check it with silly putty to verify clearance. Do your pistons have valve reliefs cut in them?
Last edited by LxMan1; Apr 16, 2007 at 04:33 AM.
Thread Starter
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Senior User
Joined: Feb 2004
Posts: 295
Likes: 0
From: conway arkansas
yea they have valve reliefs, cant remember if its one or two, but yea they do, they are the zero deck flat tops that tim meyer sells, like a 13 or 14 cc step dish in em, not a true flat top but close thanks
