***Hydraulic cam recommend for my 273....

Ok, how about something near a stock 340 cam or a step or two above.

Somewhere above 265° duration or under 280° duration. Lunati, Crane make some nice cams.

Also throw in a set of Rhoades lifters.


If you want the most fuel economy, the Larry Shephard recommendation is to use the stock 360 2 bbl cam 252° duration and somewhere near .410" or .425" lift. That is what I'm going to use in my 360 for my 66 Valiant wagon with Rhoades lifters and shooting for 20 MPG.