logan1 Posted February 29, 2012 Share Posted February 29, 2012 Ok so i'm doing a SBC 350 swap into my 240z. Just wondering if its gonna be a bad idea for me to use a 4.11 longnose R200 open diff in cungunction with my small block and WC T5 tranny. The SBC 350 will be putting down a very modest 300hp 350 tq at the flywheel. The car is going to be a 100% street car. your thoughts? Quote Link to comment Share on other sites More sharing options...
Miles Posted February 29, 2012 Share Posted February 29, 2012 (edited) I have built two 240Z street cars using the 350 SBC WC T5 3.54 R200 combination. Very happy with the 3.54 R200 plus they are in great supply. Edited March 1, 2012 by Miles Quote Link to comment Share on other sites More sharing options...
randy 77zt Posted February 29, 2012 Share Posted February 29, 2012 If the car will only be used on weekends in town it will work ok.If you need to drive it on a freeway for long distance i would get a 3.55 diff.The car set up depends on your intended use.the 4.11 with the v8 wil probably allow you to skip gears. Quote Link to comment Share on other sites More sharing options...
logan1 Posted February 29, 2012 Author Share Posted February 29, 2012 (edited) the intent of the car is to be grand tourer. Lots of highway/freeway miles. I also still have teh original R180 3.36 diff the car came with stock. Would i notice any realy differnce between a 3.55 and a 3.36? Edited February 29, 2012 by logan1 Quote Link to comment Share on other sites More sharing options...
randy 77zt Posted March 1, 2012 Share Posted March 1, 2012 If you dont shock load the rear diff(drag racing ,burnouts)I would leave the r180 in for awhile and drive it.With gas at $4 a gallon you will need all the help you can get .If you can get a wide band o2 set up on it to tune it that will help alot with gas mileage and the fumes in the back.If you just bolt on an old holley carb from a garage sale you are gaurenteed bad gas milage. Quote Link to comment Share on other sites More sharing options...
GOTHALOSISM Posted March 1, 2012 Share Posted March 1, 2012 I love my 3.54 rear end with the R200. I have a R200 3.9 welded diff for the drags sitting in the garage. It only takes about an 2 hours to swap them out. Quote Link to comment Share on other sites More sharing options...
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