stock 4L80E at 425rwhp ?

Printable View

10-20-2008, 05:02 PM
r.barn

Yeah the swap really doesnt look too hard with a few of the right parts
in the right places. Can always sell my 4L60 for a couple of hundred bucks to offset the cost too.
10-20-2008, 05:27 PM
Jamest

Mine does. 475.7 hp @ the wheels, all stock 4L80E. It is starting to slip in 2nd gear under high boost, but normal driving is perfect still. It's been about 3 yrs on the stock trans at that HP and even higher.

Jamest

Quote:

Originally Posted by r.barn

Been searching and calling around for built 4L60E's this morning.

Was told at 400+rwhp on 5,000+ lbs Tahoe I will need the billet output
shaft for my 4L60E. That puts it at a Lvl 5 FLT or Century transmission.

Both run $2,800+ ......... ouch.

Saw the 4L60E to 80E sticky ........ doesnt look too hard.

Have seen that stock 4L80E will easily handle 400-450rwhp.
Is this true ? $800 stock 4L80E sounds lot better if it really will hold up.
10-20-2008, 11:13 PM
r.barn

I found some links worth sharing
Back to thinking on buying $700 in parts for HD 4L60 rebuild by local trans shop.

ebay seller with all the HD internals for a stage II-III rebuild for
about $600-800 in parts.
eBay Store - Procare Performance Transmissions: 4L60E 4L65E 4L70E TRANSMISSION: TRANSMISSION CASE SAVER 4L60E 700R4 TH350

Add this guys $550 billet out put shaft for a stage V build

Circle D Specialties - Billet Parts

His 4L60 rebuild kit has everything for a Stage IV build up.
Circle D Specialties - 4L60E Rebuild KitKit