Shouldn`t the heads with the smaller cc have better performance?
Between the DoveC and the DoveA2A, the cc`s are different,so the heads are different.One has adjustable rocker arms.Which heads produces more HP? Thanks to all.

 

I thought the chambers on the dove-a's and the dove-c's were the same? both measure at 72-76cc (I think). They're a real good head, just clean up the exhaust port a little, bigger valves (2.24/1.74), factory dished pistons (9.4:1 comp with these heads), and you're set! Correct me if I'm wrong

 

No correction, but some different opinions.

I wouldn't bother going with more than 2.19" valves on regular production heads. The 2.24" shows no improvement in hp over 2.19". Ford dropped down from 2.24 to 2.19 in '72 when the PI head went to lower compression and smaller ports.

CJ heads have much larger intake ports and runners, which allow them to take advantage of 2.24" valves.

You should replace positive stop nuts with Kool Nuts on any early ('68-71) head. This makes the valve train adjustable for purposes of pre-loading hydraulic lifters and that makes a big difference in performance, especially with aftermarket cams.

Head chamber size, cc, smaller or larger, doesn't make hp by itself. A combination of head cc and piston heigth dictate compression ratio. Generally speaking, forced induction aside, higher compression ratios will produce higher hp.

For street purposes 10.5:1 c/r with conservative timing advance curve and driving it right is about all you can run on premium pump gas. Aluminum can handle 11.0:1 with the same advance stratagy and driving habits. If you're after higher performance, anything below 9.05:1, depending on cam specs, turns 385 series engines into dogs.

 

What is the difference between dove c and dove a2a heads?