421/434 RPM Range
What kind of RPM to you bigger small block guys run?
|
Re: 421/434 RPM Range
Not enough...hahaha
you have email |
Re: 421/434 RPM Range
Aw,,Bob,,,,, I was hoping you'd answer him on this. I've been kicking around the idea of doing one of these engines for a while, but am hesitant because I have 4:88s (Dana 60) and a 29 1/2 tall tire and worry that I would spin it too tight on the top end. Just curious I guess,, oh well, thanks anyway.
Danny Durham |
Re: 421/434 RPM Range
I run a 434 and shift at 6800 and go thru at 7000 to 7100.
|
Re: 421/434 RPM Range
I Run a 434 in a 3000# car with a 350 turbo trans and a 430 rear gear and I shift at 6800 and go threw at 6800
|
Re: 421/434 RPM Range
Quote:
|
Re: 421/434 RPM Range
Bob,I run a glide with a 4.71 gear 14-32 tire.On the stop 134-135MPH.I only made one run off the stop and it went 140MPH.
|
Re: 421/434 RPM Range
Not counting last year ,,,,, I've ran a small block for Quite a while .
I ran 5.00 gears , 1.92 1st gear in the trans , left on the converter every pass @ 5800 RPM and went through at 7600/7700 ,,,, in super gas Trim the car weighed 2240 and would run 9.900 @ 148/151 depending on air . It was a 421 with Dart 23 degree heads . I ran good parts rebuilt engine ( rings, bearings , head gaskets etc... ) every 200 runs ! Colorful racer # 37 |
Re: 421/434 RPM Range
My 434 in S/St trim 2830 lbs runs 10.90@149-151 depending on the air. Motor turns 7600 with 14.5x 32 and 4.57 gear. Motor makes 830@7400 w/ 676 ft/lbs torque @ 5800. When I first built this motor I ran 4.86 gear and 8" convertor in S/G trim (2600lbs) and went thru @ 8000. I now use 9" conv with the 4.57 gear.
|
All times are GMT -4. The time now is 03:36 AM. |
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.