John Kunkel among others.
Check his response here:
JK Response linkyThese numbers are from an article in Car Craft Magazine.
Powerglide_____18 hp
TH-350________36 hp
TH-400________44 hp
Ford_C-6______55-60 hp
Ford_C-4______28 hp
Ford_FMX______25 hp
Chrysler_A904__25 hp
Chrysler_727___45 hp
Car Craft isn't know to be overly scientific in it's procedures.
I can pretty much guarantee a 727 isn't sucking 45 HP out of a 100HP slant six.
I don't agree with those Clowns' numbers either, but it is something to go on. A percentage is what needs to be determined:
The generally accepted number for transmission AND differential power loss to the tires is 20% for a manual and 25 to 30% with an auto.
I did a bit of math based on their numbers and I come up with roughly 7% hp difference by dumping the 727 and switching to a 904.
I have switched from a 727 to an A833 and the 727-based 46RE to NV3500 with identical engines and the seat-of-the-pants difference was night and day. If anything happens to my 46RE it's getting replaced with a 904-based 44RE. :
Where was the seat of the pants feeling different, low gear launch, cruising, where?