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2015+ Shelby GT350 Mustang
Magnum XL swap ?
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<blockquote data-quote="ANGREY" data-source="post: 16365274" data-attributes="member: 188865"><p>Some insight for you guys that I've found.</p><p></p><p>The 6060 has a pump from the factory (with output) for remote cooling. The magnum does not.</p><p></p><p>The reason the magnum (and particularly the XL) is preferred is that it's a marked improvement in torque capacity over the stock 6060 and it also comes with the "F" style tail to extend back (hence the XL) so you can run a top mounted shifter. No more remote shifter nonsense. This results in obviously more NVH, but if we're having these discussions, we care less to little about NVH (and besides, it's no different than the days of running a T-45 or any other direct mount trans). I'm also a fan of the feel of the top loader (which is what MGW and Barton try to replicate with their beefy extension arms and bushing, and while it's a marked improvement over the OEM, it still doesn't feel as rock solid or short as the top loaders).</p><p></p><p>There is an aftermarket kit that upgrades the magnum to a 6060 style pump and output for coolant lines. (It's a cool $995.00 unshipped and uninstalled). This allows the advantages of the magnum and the functional cooling of the 3160 or the 6060. It however, will not work with the 2.97 1st magnums, but no big deal, I prefer the close ratio 2.66 1st which accepts the upgraded pump.</p><p></p><p>The Magnum will weigh more, but not so much as one would think. With an SFI steel bell housing and the tail section, I expect it to weigh somewhere around 80 lbs more than the 3160 (maybe less comparing the 3160 with the heavy MGW shifter).</p><p></p><p>The magnum also allows for a slip style yoke (much cheaper aftermarket shaft).</p><p></p><p>I looked into having my 3160 "upgraded" visa vis Calimer or Tick performance. No one in the marketplace is upgrading 3160s, probably due to demand but more so due to lack of aftermarket or replacement parts.</p><p></p><p>The Magnum (in stock form) will not shift as compliably as the 3160, especially at high rpms, but with an aftermarket upgrade and cryo and REM polish, it should suffice.</p><p></p><p>The other BIG advantage of the magnum is the .50 second overdrive. This allows to run taller rear gears (like my 4.09) and not lose your sanity on long cruises. I'd pay good money to swap out the .63 in the 3160 (which is all but useless for anything other than highway cruise control) and put a .50 in it. That would allow you to set the cruise at 80 and run like 2100 or 2200 rpms.</p><p></p><p>So to have a perfect magnum swap, it's not cheap. Around $5k-$6k for the kit (depending on your clutch preference and shaft choice) and then another $2k in shipping, pump, upgrades, etc)</p><p></p><p>If I can get even $1500 out of my OEM 3160+MGW+shaft then that puts the whole affair around $6500 net. Expensive, but cheaper than a tow truck from the side of who knows where and heartache and waiting to replace a fried 3160. Anyone wanting to push the GT350 to north of 900 hp and not have complete roller skates for traction this is the calculus/decision.</p></blockquote><p></p>
[QUOTE="ANGREY, post: 16365274, member: 188865"] Some insight for you guys that I've found. The 6060 has a pump from the factory (with output) for remote cooling. The magnum does not. The reason the magnum (and particularly the XL) is preferred is that it's a marked improvement in torque capacity over the stock 6060 and it also comes with the "F" style tail to extend back (hence the XL) so you can run a top mounted shifter. No more remote shifter nonsense. This results in obviously more NVH, but if we're having these discussions, we care less to little about NVH (and besides, it's no different than the days of running a T-45 or any other direct mount trans). I'm also a fan of the feel of the top loader (which is what MGW and Barton try to replicate with their beefy extension arms and bushing, and while it's a marked improvement over the OEM, it still doesn't feel as rock solid or short as the top loaders). There is an aftermarket kit that upgrades the magnum to a 6060 style pump and output for coolant lines. (It's a cool $995.00 unshipped and uninstalled). This allows the advantages of the magnum and the functional cooling of the 3160 or the 6060. It however, will not work with the 2.97 1st magnums, but no big deal, I prefer the close ratio 2.66 1st which accepts the upgraded pump. The Magnum will weigh more, but not so much as one would think. With an SFI steel bell housing and the tail section, I expect it to weigh somewhere around 80 lbs more than the 3160 (maybe less comparing the 3160 with the heavy MGW shifter). The magnum also allows for a slip style yoke (much cheaper aftermarket shaft). I looked into having my 3160 "upgraded" visa vis Calimer or Tick performance. No one in the marketplace is upgrading 3160s, probably due to demand but more so due to lack of aftermarket or replacement parts. The Magnum (in stock form) will not shift as compliably as the 3160, especially at high rpms, but with an aftermarket upgrade and cryo and REM polish, it should suffice. The other BIG advantage of the magnum is the .50 second overdrive. This allows to run taller rear gears (like my 4.09) and not lose your sanity on long cruises. I'd pay good money to swap out the .63 in the 3160 (which is all but useless for anything other than highway cruise control) and put a .50 in it. That would allow you to set the cruise at 80 and run like 2100 or 2200 rpms. So to have a perfect magnum swap, it's not cheap. Around $5k-$6k for the kit (depending on your clutch preference and shaft choice) and then another $2k in shipping, pump, upgrades, etc) If I can get even $1500 out of my OEM 3160+MGW+shaft then that puts the whole affair around $6500 net. Expensive, but cheaper than a tow truck from the side of who knows where and heartache and waiting to replace a fried 3160. Anyone wanting to push the GT350 to north of 900 hp and not have complete roller skates for traction this is the calculus/decision. [/QUOTE]
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Magnum XL swap ?
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