always used type f whats best ?727 street strip 9.0 converter full man valve body bb engine I run Type F, but use Redline's synthetic version. I believe ATI's synthetic ATF is also Type F, FWIW. Street use with the additional heat & slippage from a high stall converter rules out standard (non-synthetic) ATF for me. I also use an accessory trans cooler. But that's my approach and others may not agree. A lot of street use w/ a 5k stall converter here w/ conventional (non-synthetic) Type F and no issues. Been doing that since 2003 or so.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
| 
