Actually, I heard (key word heard here) that a 700r4 is basically a Th400 with an overdrive. So as for parasitic loss, I would say it would be similiar, but mainly in how you build the transmission will be the key.
I havent experimented with the GM overdrives-700r4 & 200r4s but I'd like to down the road for a nice street car.
1968 GTO-455, Muncie M-21, Limited Slip, Being Painted Turquoise Blue With White Royal Bobcat Stripes
1972 GTO-455, Ram Air IV Cam, 6X Heads, Headers, Performer Intake, Q-Jet, Th400, 3.55's. Cardinal Red
1966 LeMans-Aquiring soon. Want to add 389/3x2's, 4-speed, GTO hood, and Burgendy paint.
Heart Of Illinois GTO's Member
__________________
1968 Pontiac GT0
1972 Pontiac LeMans
Heart Of Illinois GTO club member
"This aint no damn Chevelle"
|