Engine RPM at Highway speeds?

Tincup

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This question is for the automatic guy's. What engine RPM are you running at 70mph? assuming stock 4:56 gears and 305/40/22 tires. Thanks...
 
2150 (O/D, converter locked)

In other words, as slow as it's going to turn at 70 mph.
 
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I know you got an answer already Tincup but is a 6-speed swap out of the realm of possibilities? Lower RPM and turns the QC into much more of a beast ;)
 
Thanks everyone, That's perfect, I was hoping to be around 2100rpm, all the online calculators say it should be around 2400rpm. I was considering changing to 4:10's.
 
Thanks everyone, That's perfect, I was hoping to be around 2100rpm, all the online calculators say it should be around 2400rpm. I was considering changing to 4:10's.

Personally I would only do that if you had some good power adders. Otherwise you'll increase the heavy pig feel :(
 
If you want to greatly reduce that heavy pig feel, buy a good converter it makes a world of difference for general driving around.

2150 (or so) isn't a lot of rpm for a performance-style camshaft so if you have one and are considering slowing your engine down, throttle response and gas mileage can take a hit.

It depends on how big a cam and how much you want to slow it down and/or if you care about that stuff.

Cheers and Merry Christmas (or whatever you prefer for holiday greetings) :)
 
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Here is a pic of my truck, should weigh in just over 4000lbs, so It shouldn't feel like a heavy pig.

131small.jpg
 

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