New High-stall Torque Converter + Flex Plate
Swapped in the new torque converter and flex plate. Also replaced the worn detent kickdown cable. Each part took two attempts. Ordered the wrong flex plate at first and the new kickdown cable was way shorter than the original. The new higher-stall TC was a big help. Doesn't lurch in to gear and maintains a nice 500-600rpm when idling. 1800-2000 won't win any drag races, but it's a noticeable difference getting into the power band sooner.
So it turns out, the block itself is a "638" with zz4/L98 heads, intake, etc. Most likely from a 87-92 Carmaro. Once I get the carb rebuilt, I'm definitely taking it up to Mayhem Motorsports to get a dyno run.
It's running good with the exception of a new exhaust leak just before the muffler. Putty or weld will fix that up.
Next up:
drill holes for rear seat belts
rollbar
rust / body work
