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Old 03-01-2009, 12:23 PM   #1
Chevy1TonFun
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Join Date: Oct 2007
Location: Fresno CA
Posts: 750
71 4x4 BBC Swap: Doing what I should have done the first time!

Ok for those that don't know I burned up my TH350 Christmas Day on the way home from spending time with my family. So, I decided to upgrade to a a TH400 and find a divorced 205. Well I found all that for about $350. Then I made a newbe mistake of making a crossmember for the trans and not mocking up the tranfercase. So the drive angle was off. I decided to install a body lift and move the motor forward 2". So one thing led to another and what use to be just a blown tranny turned in BBC swap, new trans and new t-case. Ok so I ordered a 3" body lift from performance accessories and started installing the kit and found out the bolts are all wrong. I believe that 6 out of 14 are correct. So I will be calling Performance Access. tech support on monday to see if they will send me the right bolts.

So my biggest problem is that I need to buy a 454 BBC asap. I have three ideas for a engine crossmember: 1. ORD, 2. DIY4x, and 3. build my own.

Other than firewall issues, is there anything else that need to be done in order to fit a BBC in my 71 4x4?








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Tow Rig: 2012 Chevy 2500HD CCSB LTZ Z71 4x4 Duramax
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Mud Truck: 1972 Chevy Cheyenne K30 4x4, 468/400/205, D60/D70HD, 18" Custom Lift, 17x39" IROKs
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