MuscleRods Stainless Steel Headers. We have found that 1 7/8" is the best size header for most LS swaps. So, we now offer a 1 7/8" long-tube and mid-length header in stainless steel specifically for this LS swap. PCM Reprogramming Services I will reprogram PCM, ECM, TCMs for engine swap applications. This includes removal of Anti-Theft or VATS, changes to fan on and off temps, injector part number, segment swaps for 4L60e to 4L80e conversions. Vehicles supported include 1993-97 LT1 and all 1996-2013 Trucks, Camaro, Firebird, Corvette. General Tech - 4l60e swap - i have a 93 chevy g-20 with a 4l60e trans it just died the other day and I'm having too many issues electronically with this tranny (4l60e) and have come to the conclusion that I'm just gonna go pick up an old 700r4 that was freshly rebuilt at a screamin deal of a price this Sunday.Discussion Starter • #1 • Jun 30, 2007. 4L60E Valve Body: Failure to resolve this issue may result in premature wear or possible damage to the torque converter. I replaced the entire valve body and torque converter and still no. This will fit all TH 200-4R , TH 700R4 , & 4L60E models. 4l80e Torque Converter Lockup Problems. Nov 01, 2007 · The 4L60E also uses a four-pinion front planetary carrier, which is more expensive than the rear unit. For cars making over that number, there is a front planetary upgrade as well. Our '96 Impala ... Fixing my 4L60E Auto transmission, the problem was hard shift from 1 to 2 gear, but otherwise it was good. Fitting 35s on my 2005 ... This is the 3rd video in the 4Wd 4L60e to 4L80e Transmission Swap Series. Subscribe now - video 4 coming soon. OTHER ...