Engine RPM at highway speed

[Brian Schlump <jsbs@xxxxxxxxxxxxx>]

I'm puzzled by the difference in engine RPM with my 2 cars, that each 
have a 3.23 Sure Grip.  I usually drive at 62 mph on the 2 lane roads in 
our area.  My '64 Belvedere has a 426 Max Wedge with a 4 speed 
transmission and P245/60/15  rear tires.  It tachs at 2,200 rpm at 62 
mph.  I recently had a '68 Charger restored and it has a 440 engine with 
a 727 big block transmission and F70/15 tires.  It tachs at 3,300 rpm at 
62 mph.  I've checked the rpm on both cars with a second tach and I've 
had my wife follow me in her new car to verify that I'm doing 62 in each 
one.  The 727 was rebuilt as part of the restoration.  It shifts through 
all gears and downshifts into 2nd when I hit passing gear on the 
highway.  The fluid hasn't discolored in 600 miles, and doesn't smell 
burnt.  Today the restoration shop installed a new converter, but that 
had no impact on the rpm at highway speed.   Does anyone else have a 727 
with a 3.23 rear end combo?  If so, what engine rpm do you run at 
highway speeds?  Any other ideas?
Brian

'64 Belvedere
Woodstock, IL.

"The difference between ordinary and extraordinary is that little 
extra."


----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html. 

This email was sent to: arc.6265@xxxxxxxxxxxxxx

bSONJP. 
Or send an email to: 1962to1965mopars-unsubscribe@