440 build questions

jgriggs29 said

My budget isn’t huge but I’m not planning on throwing an engine together with junkyard parts either I want to do it right. I was just hoping I could use the few aftermarket parts I have and apply them to what I have in my shop already. someday if I have 10k laying around I’ll do everything I need. But for now I want to put something together I can have fun with. I have 4.30 gears in the car and a 727 with a mild build and manual valve body. Without anything done in the bottom end is it even worth spending all the money on heads or will the 906’s do the trick?

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Well you certainly CAN use the parts you have laying around. And aftermarket heads will surely increase the engines performance. The ProComp heads you were looking at, do they use the offset intake rockers? If so, are your Harland Sharp intake rockers offset for that head?

I figure the whole internet is tired of me re-posting these dyno results of low compression engines we have built........but to give you some encouragement, here we go again..........

In the first of these threads, an aftermarket head would at least run as good as the mildly ported 516 heads we used, and probably do even better.

Dyno testing a stock(?) 1972 440

The slug 400 on the dyno.