Drivability question

well the cc503 no issue. the torque converter with lets say a 3500 stall should be fine as long as your not haul %$^# to the area. the cc503 is a good DD cam cause of the low end torque for driveability around town. with a 3500 stall you should have no problem on the highway, probably end up sitting at 2200 with stock gears. the only real time when a torque converter heats up is doing a brake launch or always in the throttle. so basically your fine.

You will cruise at 2800-3000rpm at 75mph with 3.73s in the rear.

If thats doable for you, then thats really all that changes

3.73 gears will most likely get done. I have 4.10s in my 92 bird, big difference. Thanks for the input you guys.

ShowNoMercy said:

You will cruise at 2800-3000rpm at 75mph with 3.73s in the rear......

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How fast you figure he's gonna be driving?

I ask because those kind of RPMs is what I get with my 4.10 gears .

piratederf said:

This question is directed to those that have cam-ed their lt1 and put a higher stall torque converter on the tranny. What kind of drivability do you have for longer trips.......

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With a cam much bigger than the CC-503, I get my speed to 70-75 mph, flip on the cruise control and knock out 350-400 miles no problem.

With 3.73 gears and a 3000 stall TC, I'd knock out about 21 MPG with my Impala. With 4.10 gears and a 3600 TC, about 18 MPG.

They most telling factor in your gas mileage would be the quality of your tune.

KW

My old heads/cam combo used to cruise 75mph at 2800-3000 rpm, that was both with a cheap ass mystery stall, and a circle D 4000, 3.73 rear gears. Was the same cruising rpm through both of the "tunes" I had on the car during that stage.

I would say the trans slippage has more to do with RPM than anything else, fairly certain mine was def hurt pretty bad.

Now i'm raking in the info. Thanks guys. Now the hard part, saving the money.