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| 170 vs. 225 Swap https://slantsix.org/forum/viewtopic.php?t=67662 |
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| Author: | 1963ddgt [ Wed Mar 06, 2024 5:13 pm ] |
| Post subject: | 170 vs. 225 Swap |
New to this site and hope to get my '63 Dart GT convertible back on the road after FORTY years. I have a very tired 170 in my '63 dart with 150K miles. I also have a rebuilt 225 with 2k miles that came out of a '71 Valiant. Can I swap the '63 170 for the '71 225? Will the '71 mount to the '63 transmission? What else would I need? Thanks for the help. |
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| Author: | hyper_pak [ Wed Mar 06, 2024 6:02 pm ] |
| Post subject: | Re: 170 vs. 225 Swap |
Welcome! You need a bushing in the back of the crank to support the smaller nose of the torque converter. The rear flange changed around 68. |
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| Author: | Charrlie_S [ Thu Mar 07, 2024 2:22 am ] |
| Post subject: | Re: 170 vs. 225 Swap |
In addition to the adapter bushing you need to use a 68 or newer flexplate, the engine brackets and motor mounts from the old engine. oil pan and pickup tube from the old engine, and carb with linkage. One thing about the 170 CID carb. If it is the original carb, it is smaller than the carb for the 225. It will fit and work, however. The reason to keep the old carb is due to the linkage hookup. |
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