3800 Series II L36 + 4 speed manual? (Page 2/2) AsaBergman SEP 15, 02:11 PM quote Originally posted by Dennis LaGrua: Many engine swaps have been done with the 4 speed Muncie and 5 Speed Getrag but the manufacturing parameters are that these small transmissions were designed to operate with a maximum of 180-200 ft lbs of torque. With the L36 3800 Series III N/A you will be putting 230 ft lbs of torque into an old well used transmission. As long as you don't drive with a heavy foot, the trans might hold up but the stock clutch may not. In addition the 4:10 FDR isn't the best choice for drivability and economy. You'd be far better off if you used the 4T65e transmission that GM designed to work with these engines. *sigh* The stock clutch won't hold up, this I know. Maybe I don't understand what drivability means but the 4.10 gears work perfect for me. This Fiero became my primary driver because I enjoy the car and how it drives so much. I swapped in an MY8 last month and was so disappointed we removed it the same week. An automatic is not an option, it would take all the enjoyment out of the car and it would sit in the garage forever. I'll just get the duke rebuilt if/when it dies. A shame to spend the money on a 90 hp engine but that appears to be the best option. Thank you all for the responses. Take care. olejoedad SEP 15, 04:32 PM What the heck, go for the swap you had in mind! Just use a heavy enough clutch!