This is some valuable info for those of you who wish to install a newer GEN 3/4 engine in front of an older 700r4/4l60, 4l60e. Also info for installing a newer 4l60e/4l65e/4l70e behind a GEN 1 TBI SBC and GEN 1E Vortec 305/350.
This is from a post I created over at PPE.
---------------------------------------------------------------------------------
If you want to install a GEN 3/4 engine in a 96-99 truck you can use the existing 4l60e by using this flexplate spacer
http://www.crateenginedepot.com/store/LS1-Flexplate-Spacer-12563532-P1343C0.aspx
and 6 of these longer bolts
http://www.crateenginedepot.com/store/LS1-Flexplate-Spacer-Bolt-12563533-P1344C0.aspx
EDIT(Nove 2010) All 3 of these components(longer bolts, flexplate crankshaft sacer and flexplate) are now available as a kit for $57.30 GM p/n 12621399
http://www.crateenginedepot.com/store/product1.aspx?Product_ID=2399
Vice-Versa
If you want to keep your 305 or 350 but have a more modern 4l60e/65e/70e that was behind a 4.8,5.3,6.0 or 6.2L engine then you need this kit.
$210.07
http://www.crateenginedepot.com/store/Transmission-Adapter-Kit-19154766-P1812C43.aspx
This flexplate adapter from HUGHES will allow you to use an older 4l60e behind a GEN 3/4 engine as well.
http://www.exoticperformanceplus.com/performance_parts/index.html?item=1091
I find this interesting, because now I can install a 4l65e from a 2006 2wd SS Silverado into my 1997 2wd rcsb. The electronics are the same in all the 4l60e transmissions. The 4l70e has the TCM inside its case.
I though some of you might find this interesting.
peace
Hog
----------------------------------------------------------------------------------
Hopefully this helps some of you. Just because you retrofit the engine, doesnt mean that you cant simply keep your original transmission.
peace
Hog
This is from a post I created over at PPE.
---------------------------------------------------------------------------------
If you want to install a GEN 3/4 engine in a 96-99 truck you can use the existing 4l60e by using this flexplate spacer
http://www.crateenginedepot.com/store/LS1-Flexplate-Spacer-12563532-P1343C0.aspx
and 6 of these longer bolts
http://www.crateenginedepot.com/store/LS1-Flexplate-Spacer-Bolt-12563533-P1344C0.aspx
EDIT(Nove 2010) All 3 of these components(longer bolts, flexplate crankshaft sacer and flexplate) are now available as a kit for $57.30 GM p/n 12621399
http://www.crateenginedepot.com/store/product1.aspx?Product_ID=2399
Vice-Versa
If you want to keep your 305 or 350 but have a more modern 4l60e/65e/70e that was behind a 4.8,5.3,6.0 or 6.2L engine then you need this kit.
$210.07
http://www.crateenginedepot.com/store/Transmission-Adapter-Kit-19154766-P1812C43.aspx
This flexplate adapter from HUGHES will allow you to use an older 4l60e behind a GEN 3/4 engine as well.
http://www.exoticperformanceplus.com/performance_parts/index.html?item=1091
I find this interesting, because now I can install a 4l65e from a 2006 2wd SS Silverado into my 1997 2wd rcsb. The electronics are the same in all the 4l60e transmissions. The 4l70e has the TCM inside its case.
I though some of you might find this interesting.
peace
Hog
----------------------------------------------------------------------------------
Hopefully this helps some of you. Just because you retrofit the engine, doesnt mean that you cant simply keep your original transmission.
peace
Hog
