tom991

Can someone recommend a decent cam/timing setfor what I'm trying to achieve?

I'm in the process of rebuilding the original engine in my early 65 Mustang, build date, June 6, 1964. The car is a D Code with a 289 4V (autolight 4100 w/ 1.08 venturi), aluminum stock Ford intake, 210 HP engine. C4OE casting on block and heads. The heads are completely rebuilt with hardened exhaust valve seats, all new valves, springs, guides, keepers, etc. Plus the heads were milled slightly to ensure flatness sothe combusion chambers should be still close to 54.5 CC or slightly less. Therocker arm studs are pressed in. The exhaust is2 /14"from the manifold backwith stock exhaust manifold, so right after the manifold the exhaust expands from the Stock 1 7/8" to 2 1/4". C4 Cruis-o-Matic Auto transmission rebuilt recently w/ stock torque converter. Will chirp the rear tires when shifting into 2nd onfast exellerations.

I know a different cam will affect performance but don't know much about choosing a cam.I would like to get a little more performance (faster accelleration) but also would like increased highway MPG. I don't want to replace the torque converter if I don't have to. I also prefer to use hydrolic, non-roller,lifters, The D code mustang is not a muscle car so I also would like the idle to be somewhat smooth when sitting still (idling at a red light) maybe a slight lope but not something that shakes the car. I can put an engine together but am only slightly knowlegable about choosing a cam. The pistions I have are +.040, TRWSpeed Pro, flat topcoated pistons w/ moly rings.

Thanks

Gary H

Maybe the comp cams XE250H. You probably should have planned on the cam when you had the heads done since you might need a little stronger spring. You cant go with to big of a cam, high spring pressure might pull the rocker arm studs out of the head. You might look at a set of tri-y headers like they used on the shelby mustangs then run a full 2 1/4 exhaust.

tom991

Thanks Gary, I thought about the cam when I was having the heads done and decided I wanted something that would only suck d[:@]wn the gas when I decided to put my foot into it not all the time.

[IMG]local://upfiles/71010/7C5572D6A0474AA3B1A6A0BB15D23C3A.jpg[/IMG]

Brandontyler65

keep that motor stock the d code is rare

Colorado_Mustang

First of all, you need to ditch the push in rocker studs. Any cam you get that has much lift at all will push the studs out, eliminating any gains you may find.

For economy, you want a cam that will produce it's most torque in your cruising rpm range. The 250-260 degree duration range cams would be in this field, with about 0.470" lift or less.

Spend more time learning how to tune the carb and ignition to get good gas mileage. My stock '71 with a 302 was averaging 20mpg.

Oh, and get that exhaust straightened out. 2" to 2.25" all the way back with a flow-through muffler design would do wonders.