RE: [Chevelle-list] Bolt on overdrives.

[Scott Somers]

My tranny guy told me that my 4L60 ( 700R4 ) would work OK on my 468 but at 600hp it would granade if I pushed it a few too many times at a stoplight.  My tires weren't sticky so they took the strain off the tranny and just caught fire a lot.  Had they grabbed, I might have been pulling tranny parts from my backside.   Seems anything after 450 hp gets iffy on a stock or mildly beefed box.  But with 4:10's I did like the lock up overdrive.  Sounded strange but it felt and sounded like a 5 speed automatic.   There are tranny guys like Phoenix or Bow Tie that can build them to take 600+ for a few thou. or less - no E so no computer.   Had I kept my '68, Santa would have delivered a new box this year ( trade in my 4L60 if it was still in one piece).  But alas......    Scott     From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jack Thorpe Sent: Tuesday, July 26, 2005 8:46 AM To: Chevelle-list@chevelles.net Subject: [Chevelle-list] Bolt on overdrives. Has anyone bolted on a overdrive unit to a T-400? They seem a little expensive. Would a 700R stand up to 400 HP+. Looking for mileage and less rpm's on the motor while cruising. Thanks Jack's 66