Luke Skyjacker

iTrader: (1)

I'm trying to decide on what transmisson I will run in my project. The car is a backhalfed Mazda rx7 that will weigh around 2200-2300 lbs. minus driver. Power will come from a stock 5.3 with z06 cam plus a T76. The car has a 9" With 4.56 gears and will run 295 DRs. I plan to drive the car regularly.

1. I currently own a factory case powerglide with a sportsman transbrake manual valvebody. Greg slack converter (notexactly sure how it will act behind an ls1 and I would likely have to send it back to him to replace the flywheel mounting flange) Also has deep pan.

2. 4l60e with 3800 yank converter.

slow67

iTrader: (2)

I'd go with the glide at that weight. No need to get the converter cover modified, get the 4l80e flexplate/spacer setup. I'd also drop the rear gears down a lot too. With the 295s, I'd probably go with a ~3.5 to ~3.73.

Luke Skyjacker

iTrader: (1)

Thanks for the input. I was hoping for overdrive but I can't fork over a ton for a bunch of aftermarket parts to go in a 4l60e. The car has a spool in it now, I will do some math with tire size and gear and do the best I can for highway speeds with the glide.

Can someone give me more info on rhe flexplate/spacer setup he is referring to?

FTICONVERTERS

iTrader: (3)

GLIDE !!!!!! And Greg builds a very nice converter as well. Good dude!!!

Greg

Luke Skyjacker

iTrader: (1)

what spacer is used for a sbc pattern converter with a stock 4l80 flexplate?