4L60- & 4L70-SERIES INSTALLATION COMPONENTS Part Number Description Technical Notes 19125817 Bell Housing Kit – LT Engine Unique bell housing kit enables 1996–later 4L60, 4L65, 4L70 and 4L75 four-speed automatic transmissions to be matched with the Gen V LT1 engine; Use with 8-bolt flexplate kit P/N 19329416 19259117 Transmission Installation Kit – 4L60/4L70 Series Use with 4L60, 4L65, 4L70 and 4L75-E transmissions on LS engines with 6-bolt crankshaft flange; Includes flexplate, flexplate covers, fasteners and instruction sheet; Does not fit LSA, LSX454, LS9, LT1 or LT4 engines 19329416 Transmission Installation Kit – 4L60/4L70 Series (not shown) Use with 4L60, 4L65, 4L70 and 4L75-E transmissions on LS engines with 8-bolt crankshaft flange; Includes flexplate, flexplate covers, fasteners and instruction sheet; Fits LSA, LSX454, LT1, LT4 19433118 Transmission Installation Kit – 4L60/4L70 Series (not shown) Use with 4L60, 4L65, 4L70 and 4L75-E transmissions on Small-Block and Big-Block crate engines with 6-bolt crankshaft flange; Designed to be used with SuperMatic™ converters; Does not include flexplate 19420473 Transmission Installation Kit – 4L60/4L70 Series Same as 1943118 but includes flex plate and attachment bolts 19154766 Transmission Adapter Kit Allows installation of Gen III/IV-style 4L60-E/4L65-E transmission onto Gen I and II engines using production-style torque converter; Includes spacer ring, shims, dowels, bolts and flexplate; Works on one-piece rear main seal engines only (e.g. Ram Jet 350) 24502513 4L60/700R4 Transmission Swap Kit (not shown) Adapts the 4L60 or 700R4 automatic transmission (non-electronic version) for use in early model vehicles, with or without an engine management computer; Includes instruction sheet, throttle valve spring for carbureted engines, a normally closed fourth-gear clutch switch and wiring connector for the torque converter NOTE: For individual flywheel and flexplate components see pages 111, 165 and 210. 31 CHEVROLETPERFORMANCE.COM TRANSMISSIONS & COMPONENTS Transmission Adapter Kit Transmission Installation Kit – 4L60/4L70 Series Gen V LT1 A/T Bell Housing Kit 4L85 AUTOMATIC TRANSMISSION (remanufactured) 19300175 SuperMatic™ 4L85-E Four-Speed Transmission - Modified valve body for firmer shifts than production 4L85-E - Direct bolt-on for Gen I Small-Block and all Big-Blocks - Does not include torque converter (see pages 28–29 for options) - Includes additional clutch plates - Gear ratios: 1st: 2.48, 2nd: 1.48, 3rd: 1.00, 4th: 0.75 - Tested up to 690 lb-ft of torque NOTE: Use with electronic controller P/N 19332780 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 page 29. 4L80-SERIES INSTALLATION COMPONENTS 19259119 Transmission Installation Kit – 4L80 Series - Use with all LS engines to mate transmission fully with the engine - Includes flywheel cover, hardware and fastener torque specs - Does not include flexplate - Use flexplate P/N 12654640 for 6-bolt crankshaft engines and SuperMatic™ converters - Use flexplate P/N 12636325 for 8-bolt crankshaft engines and SuperMatic™ converters - All production converters must use crankshaft adapters (see kits page 33) 19420956 Transmission Installation Kit – 4L80 Series (not shown) - Use with all Big-Block crate engines to mate transmission fully with the engine - Includes flywheel cover, hardware and fastener torque specs - Designed to be used with SuperMatic™ Convertors - Does not include flexplate
