360 Swap for the 65 Dart

360 Where the 273 was!
In a 64 – 66 Mopar a-body


Requires the center pump oil pan. (Not a truck pan)

You can use your current motor mounts if they are in good shape. The Schumachers are one option but another is that you can just weld a little triangle on the existing right side mount and drill it so it catches the other ear on the 360 block.

You can use a B&M flexplate (10239) to adapt a zero balance torque converter. If you want to use the early converter you will need a spacer as the pilot on the early converters is smaller. You can get that spacer ring from Torqueflite Patty. 206-365-1966. Another option is to put the front three main components from a 68 and later 904 into the early cable shifted 904, ending up with the later model input shaft, so you can use a later zero balanced torque converter. Or, have a custom torque converter made with the proper snout, input, and balance.

If you use the earlier iron water pump the stock radiator will work. Use a '65 water pump & your radiator lower hose lines up (360 water pump has lower hose on wrong side). If you use the 273 front cover & timing tab you will have to set TDC & mark the front dampener of the 360. The 360 timing cover marks are partially blocked when you use the early water pump.

Use the pulleys and alternator brackets from the 273

You will probably have to elongate one of the holes in the crank pulley as the 360 has one hole offset.

You will want to use the 90 deg oil filter adapter from the 273.

Tap the air injection holes under the exhaust ports and plug with 1/8” pipe plugs.

Your biggest challenge will be exhaust. 273 manifolds choke up a 360. Headers are expensive. Not much else fits. Search for the discussions......

Modify the transmission crossmember to provide clearance for dual exhaust.

Throttle cable bracket and kickdown linkage will probably require some individual modification to fit the new manifold.

Most everything else will fit from the 273 to the 360. Easy swap!