How does 2400 RPM's sound for a 1977 440 at 60mph. Is this normal?

 

Without knowing tire diameter or rear axle ratio, it's not out of line.

 

31" tires with a 3.50 rear ratio. I know that this is what is expected but is the 440 ok with those rpm's? It seems to roar quite a it, maybe I am not use to it and wonder if it is ok.

 

newton -

If the motor was built properly (and has an appropriate cam), that's about where you'd want to be.

OK, what kind of tires are you using (kinda tall for a street car) and Chrysler doesn't make a 3.50 rear (they make a 3.55).

Archer

 

Motor is fine there at that RPM.....
Not to out of line......
But if you need to lower the rpm.. Move the gear Ratio down to around 3.08 or in the high 2's....
But what you have rite now is a good stump puller....

But to answer the question.... 2,400 rpm is not going to hut that motor....

 

You just have to remember this was before overdrive and lockup converters.

A friend of mine used to drive his 440 powered 64 300 k to the strip and back at 4000 rpm ( 80 miles each way), 2500 - 2600 cruse rpm is not out of line at all. It will give you a good opportunity to check your fuel gage, often.

 

I had a 65 Coronet with a mild 440 in it. I ran 28" tires (275/60 - 15) and at that time I had several 8-3/4 chunks. I switched from 2.76 up to 4.10 depending on where I was going, i.e drag - long road trip etc. - If I remember correctly a 2.76 ratio at 60 MPH was around 2,000 RPM.

 

My old RR with 3.54 and G60x15's "back then" ran 3K at 70 mph 440-6 car.