GM PN 19300175 Transmission

[McRat]

AFAIK, this 4 speed auto (3+OD) is intended for LS engine racing, with a rating of 685ftlb. This is rated as high as early Allisons, right?
4L85E? Comes with options for manual control of the transmission, so you'd run a Manual engine ECM tune, ditch the Allison TCM and program your shift points in.

Would it work for a light dragster? Price is right at <$3000 with no core.

 

[McRat]

Note there is a T-56 Magnum manual rated at 700ftlb for racing LS engines which is $4400. PN 19301620

 

[Mike L.]

AFAIK, this 4 speed auto (3+OD) is intended for LS engine racing, with a rating of 685ftlb. This is rated as high as early Allisons, right?
4L85E? Comes with options for manual control of the transmission, so you'd run a Manual engine ECM tune, ditch the Allison TCM and program your shift points in.

Would it work for a light dragster? Price is right at <$3000 with no core.

Need more info Pat. Link?

 

[02ilduramax]

Sub

 

[Mike L.]

4L85E transmission behind a Duramax van with heat treated gear train. I used this trans when I built the black Grand National trans for David. This is what Josh is using in the Dumpster.

 

[McRat]

I haven't found full details yet, but you can research by using the PN on www.gmpartsdirect.com and other sites.

Here's what I'm reading (large) the 2014 GMPP catalog:

http://www.chevrolet.com/content/da...2_pdfs/2014-chevrolet-performance-catalog.pdf

 

[McRat]

Here's all I know so far about the Auto:

• Improved valve body for firmer shifts

• Direct bolt-on for Gen I Small-Block and all Big-Blocks (Huh? GM recommends this for the LS9, 638HP ZR1 Corvette engines)

• Does not include torque converter. See pages 184-185 for options.

• Includes additional clutch plates

• Gear ratios: 1st: 2.48, 2nd: 1.48, 3rd: 1.00, 4th: 0.75

• Add up to 685 lbs/ft. torque

NOTE: Use with electronic controller P/N 19212657 for carbureted and Ram Jet applications. Use with electronic controller P/N 19302410 with Chevrolet Performance LS fuel injected applications. Torque converter not included. See automatic transmission torque converter match listing chart on previous page.



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So it COULD be just normal 4L85E, but is shows up in the GM Performance Parts Catalog, so it might be "race prepped"

 

[McRat]

This is like reading a Christmas Catalog ...

I can't believe this PN: 12480030

It's the real C5R engine block that won Lemans. "Good for over 900hp"

SHIT Howdy.

 

[McRat]

The name of this 4L85E is the "SuperMatic"

 

[Mike L.]

The name of this 4L85E is the "SuperMatic"

Same name for the 4L70E.

 

[McRat]

So perhaps it was just in the GMPP catalog because it's useful for high HP builds, not that it's a GMPP.

Does the converter lock on the 4L85E? The computer and programmer kit don't say, neither does the suggested TC for it.

 

[duratothemax]

So perhaps it was just in the GMPP catalog because it's useful for high HP builds, not that it's a GMPP.

Does the converter lock on the 4L85E? The computer and programmer kit don't say, neither does the suggested TC for it.

All 4Lxx transmissions have lockup converters...