Cam specs for 273?

Iskendarian E-4

Part #390144

'Mechanical' {2000 to 5500 RPM's}

Lift.......................... .425"/.425"
Duration .................. 260*/260*
Duration @ ..050" .... .216*/216*
Overlap..................... 32*
Centerline................. 108*
Lash ....................... .015"/.015"

Isky Notes;
* Tremendous torque, with good mid-range power.
* A Camshaft that 'duplicates' the stock lift, but with added duration.
* Good idle for a Stock Converter.
* Works best with a 600 CFM Carburetor.
* Recommended Rear-End Gear range from {3.23 to 3.70}
* For Engines with {9.5 to 10.5} Compression Ratio pistons.


Thanks for the info.

Now compare to the service manual specs for the 273 4 bbl cam:

IVO: 14 BTC
IVC: 54 ABC
EVO: 56 BBC
EVC: 12 ATC

Olap: 26
Dur Int: 248
Dur Exh: 248

CL Int: 110°
CL Exh: 110°
Lobe Sep: 110°