Hi all im new around here johnny the name and 35 years trade mechanic/transmission/electrican exp. Im at the moment doing my 2012 z series sv6 auto convert to v8 6.0 l77 ls3 6 speed manual tr6060. So where do i start , Well now i have read a lot of bulls--t about v6 to v8 swap saying its to hard and change every wiring harness , well i will let you know that a sv6 2010 up and a 2010 ss is 90% the same wiring and mechanical side is the same to. So let me break it down, mechanical and electrical so start with the easy part - MECHANICAL remove v6 & transmission with its wiring harness and tailshaft, remove radaitor, remove brake pedal assembly, remove dash cluster, and remove fuel flow control module thats it, Now install your new brake pedal and clutch pedal assemble[you can change the firewall plate or just do what i did is just cut out the thin plate yourself i use my plasma cutter to easy] install the v8 in the k-frame [as all ve k-frames 2006-2013 the SAME] bolt up the box install tailshaft but you have to change the rear diff flange v8 is abit bigger or you can do what i done was change over the v6 rear tailshaft end to the v8 front end section and all v6 & v8 diff gears are the SAME ok now the exhaust on the sv6 is 2/1/4 inch round but will bolt up straight to the v8 cats and power steering pump are the SAME and a/c hoses on the v8 bolt on the sv6 because the a/c condensor the same v6 & v8. Now wiring side - you need the v8 engine harness with the body harness which includes to fuse box harness[the v6 & v8 fuse box is the same and are the gmh part numbers] the sv6 throttle pedal is the SAME. the ecm e38 module i send it away for reflash to remove the VATS so its standalone [so the bcm is no longer connect to the ecm when starting thats all the bcm does with the ecm] and allso get the bcm, ebcm[abs],fuel flow control module, and dash cluster for reflash and change vin number for communications on the can bus system or you can just use tech 3 via obd plug thats it drive away enjoy but allso change the front brakes to v8 as its only the bracket you change and all v6 & v8 front stud hubs are the SAME ok......hope this makes you want go out now and convert your baby now, its cost me for full conversion was $6500 including radaitor & flashing cost, did all work myself so if any questions feel free to hit me up .......cheers guys Johnny
