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-   -   Is this a good Hydro Cam? (https://67-72chevytrucks.com/vboard/showthread.php?t=399)

dion 03-24-2002 11:50 PM

Is this a good Hydro Cam?
 
Duration .050 Int. 204
Ad. duration 270
Lobe spread 112
Valve lift .420
Cam litf .280



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Restored 72 Cheyenne C20
San Diego, CA


MikeB 03-25-2002 09:55 AM

It's a mild performance cam (assuming you have a 350) that will work well with stock intake and exhaust manifolds, and prox 8.5:1 compression. Peak torque is probably around 3000 PRM, with peak hp at 4000. You will have a smooth idle and lots of low end torque. For comparison, here are the cam specs for the very mild 350 "Goodwrench" crate engine:

Camshaft lift: 0.390” Int/ 0.410” Exh
Duration @ 0.050”: 195° Int/ 202° Exh
Lobe center: 115 degrees

The more agressive exhaust lobe compensates for "lazy" stock exhaust ports.

For some really good cam info, that actually takes engine size into consideration, check out: http://www.crower.com/misc/m_cat.shtml

Then go to Page 24.

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MikeB
69 C-10 Fleetside, mild 383, Dart Iron Eagle 180cc heads, Crane Energizer 266 cam and 1.6 roller rockers, Edelbrock Performer manifold and 600cfm carb, HEI w/ MSD components, 1986 front spindles/disc brakes, Vintage Air in-dash, lowered 2"/3".

Frank_Zeller 03-25-2002 10:15 AM

Mike, do you know the cam specs for the GM 305 create motor?


dion 03-25-2002 10:52 AM

Thanks Mike.

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Restored 72 Cheyenne C20
San Diego, CA


lukecp 03-25-2002 12:45 PM

I have a simillar cam in my truck's 350, 204 intake/214 exhaust duration @.050 lift, and the valve lift is around .444/.443 if i remember correctly. I am happy with it, it has alot of power (about 300 horses in my engine) and great low end tourqe. From 2000-3000 rpm, in the highway cruise RPM's, it has plenty of power for the pulling hills.

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Lucas

drop_shift@hotmail.com

My Daily-Driver: '72 Chevy LWB Custom/10. Rebuilt 350, 300 HP thanks to a few go-fast goodies. Ochre with a white top. Future plans include a frame off restoration, and maybe a blown 383.




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