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Author Topic: 6v92 swap  (Read 3083 times)
Beesme
62 pd 4106 8v71 86 Newell classic wide body 8v92 turbo
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« on: November 29, 2014, 08:42:31 AM »

Is a rts a left hand engine ? And if so I gather a 6v92 turbo non electric with a v730 on the cradle , should go right into my 4106 right? the rts was a 1980 if that matters. Thanx for any input . Happy holidays everyone!
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Bruce E.                                                                        62 pd4106 vs730.                   
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luvrbus
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« Reply #1 on: November 29, 2014, 09:56:57 AM »

Nope you will need to use your 4106 cradle a cradle from a 4905 won't even work in a 4106 BTDT
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Beesme
62 pd 4106 8v71 86 Newell classic wide body 8v92 turbo
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« Reply #2 on: November 29, 2014, 01:35:22 PM »

But it will all plug n play right ? That way I get my jakes and turbo plus into a 6v92 thanx
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Bruce E.                                                                        62 pd4106 vs730.                   
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TomC
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« Reply #3 on: November 30, 2014, 06:20:58 AM »

Usually an RTS is 102" wide, and the 4106 is 96" wide. You'll have to use the engine cradle from you're bus. You'll have to change the tilt of the engine from the RTS to make it fit. But-it does make for a nice performing bus. Good Luck, TomC
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Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.
luvrbus
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« Reply #4 on: November 30, 2014, 06:30:35 AM »

I wouldn't call it plug and play if you have the old oil bath air filters they need to converted over to paper with new piping to the intake and exhaust then you have the tail gate to deal with to clear the turbo and Jake valve covers then you need a new fan shroud because the 6v92 is shorter lot of work but it's worth the extra time and money IMO  
« Last Edit: November 30, 2014, 06:37:03 AM by luvrbus » Logged

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bottomacher
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« Reply #5 on: November 30, 2014, 07:23:27 AM »

I thought the swap required a bit of work on the bulkhead to clear the transmission and/or driveshaft. Is that true?
I believe I have the  four air cleaner elements. If you need them, please email.
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luvrbus
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« Reply #6 on: November 30, 2014, 07:39:23 AM »

Yes the bulkhead does need to be modified and reinforce for the V730 lol I have saw some cobbled up messes in that area almost scary, he will need drive shaft work also Most of the RTS 6V92 have a belt driven fan that requires some modifications to work in a 4106 but that is a good feature not using the old 4106 drive IMO
« Last Edit: November 30, 2014, 07:58:08 AM by luvrbus » Logged

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Beesme
62 pd 4106 8v71 86 Newell classic wide body 8v92 turbo
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« Reply #7 on: November 30, 2014, 03:01:42 PM »

My 4106 already has a v730 . Also I have a new Fiberglas rear door to install . And I can get a hell of a deal on motor and tranny  . I have some decisions to make . I wish my 8v71 wasn't so tight and ran so well it would be easier decision.. Thanx for all input
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Bruce E.                                                                        62 pd4106 vs730.                   
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TomC
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« Reply #8 on: November 30, 2014, 07:48:58 PM »

You already have the V730 and the best engine-8V-71. I took my 8V-71 and installed an air to air intercooler in front of the radiator (had the room since it is a 102" wide). Then turbo'd the engine with the original pistons. Changed the injectors from N65 to 7G75 (300hp @ 800 to 375hp @ 1125). Had to upgrade the radiator (still have to use misters on the hottest of days), bigger air cleaner, different muffler, auxiliary trans cooler with electric fan. BUT-the difference in performance is startling. 10mph faster up the Grapevine and no where near as much down shifting. Look into it. Good Luck, TomC
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Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.
chessie4905
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« Reply #9 on: December 01, 2014, 04:28:31 PM »

   Shouldn't be too bad. Much longer fan shroud and new front of engine support cross member. There will be a hundred smaller issues to deal with...there ALWAYS are. Since there have been several GM's running a 6V-92 in place of the old 8-7, you may get lucky and someone here who actually made the change will chime in.
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GMC h8h 649#028 (4905)
Pennsylvania-central
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