B/PS lt1 formula

Mark Yacavone · 10-12-2013, 10:53 AM

Quote:

Originally Posted by gbur

so what is the difference of 4L60 and turbo 350 spline count

No difference in count ..both 30 spline ..Difference is in the length
Stator support shaft...all the same in modern GM transmissions ..Again, different lengths and placement

gbur · 10-12-2013, 12:20 PM

Quote:

Originally Posted by Mark Yacavone

No difference in count ..both 30 spline ..Difference is in the length
Stator support shaft...all the same in modern GM transmissions ..Again, different lengths and placement

So approx how much pilot extension and most4L60 and 700 have what some would call an enertia ring, some having dual bolt pattern. Beleive my LS flywheel is dual pattern also

Mark Yacavone · 10-12-2013, 02:13 PM

Quote:

Originally Posted by gbur

So approx how much pilot extension and most4L60 and 700 have what some would call an enertia ring, some having dual bolt pattern. Beleive my LS flywheel is dual pattern also

Maybe Russ ( SS3011 ) has that info handy.

Someone must make a crank adapter and spacer kit by now??

gbur · 10-12-2013, 05:45 PM

Quote:

Originally Posted by Mark Yacavone

Maybe Russ ( SS3011 ) has that info handy.

Someone must make a crank adapter and spacer kit by now??

Just curious as approx. When I drop the trans tomorrow (Sunday) will measure it for myself. Having my lathe sure comes in handy. Thanks for the info so far

ss3011 · 10-12-2013, 06:19 PM

I think GM actually made a spacer for production vehicles to use a 298 mm converter with an LS engine. I don't have access to any parts books, but should be something a good GM parts guy could look up. I think they were used on LS, F-bodies.

Mark Yacavone · 10-12-2013, 06:22 PM

Quote:

Originally Posted by gbur

Just curious as approx. When I drop the trans tomorrow (Sunday) will measure it for myself. Having my lathe sure comes in handy. Thanks for the info so far

Best I can find on a Saturday lol... .550...That's a lot of pilot extension....
Why I say a crank adapter would be better...

gbur · 10-20-2013, 10:16 AM

Quote:

Originally Posted by Mark Yacavone

No difference in count ..both 30 spline ..Difference is in the length
Stator support shaft...all the same in modern GM transmissions ..Again, different lengths and placement

But maybe for your info , convertor hub dia is .130 difference

10-12-2013, 06:19 PM	#5
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 909 Likes: 70 Liked 239 Times in 114 Posts	Re: B/PS lt1 formula I think GM actually made a spacer for production vehicles to use a 298 mm converter with an LS engine. I don't have access to any parts books, but should be something a good GM parts guy could look up. I think they were used on LS, F-bodies.