The 300 2bbl in my 1964 LeSabre has given up the ghost. It's plauged by valve problems to say the least. It suffers from a previously crappy rebuild, so I have just decided to do an engine swap. I have located a 300 2bbl from a 65 Sportwagon that I want to drop in. I know it's no increase in performance, but I'm looking for an engine that runs vs. one that doesn't. My question is how much of my previous stuff will bolt up. I put a '65 ST300 transmission in the car, so I know the tranny will bolt up. Here are my itemized questions: 1) Will my exhaust manifolds bolt up? (Are the holes the same for 64 and 65, or do I need new manifolds) 2) Will my accessories fit? Starter, alternator, A/C compressor, A/C bracket all from 64) 3) Can I transfer carbs, or were they different from 64 to 65? I just had my '64 carb rebuilt 4) Will the distributor work from the 64 in the 65? 5) Can I just use my old motor mounts or will they require a change? 6) Are these engines similar enough that I can use my '64 Shop manual, or should I buy a 65 shop manual? If anyone is familiar with this swap, I would enjoy your insight. Thanks so much in advance! (If you would rather not post, I can be reached at videojoe@_REMOVE_hiwaay.net
Should be an exact swap. I did this in my first 64 Skylark back in '71 (gee I sound old). Didn't have a single problem. The 64 carb uses a water choke and will not be able to be used on the 65 as there are no water outlets on the water pump and intake. Exhaust manifolds, though different, should fit to your exhaust. You will have a heat riser valve on the 65. Also, there are 2 metal pipes that go through the passenger side manifold to direct heated air to the choke. It might be a good idea to check them and replace as necessary before you put the motor in the car. Somtimes they rot off and you will need to drill out the rusted ends to be able to put new pipes in. All accessory brackets should be the same. Trial fit to be sure, but I don't see a problem. Motor mounts may be different on the LeSabre. They were on the Skylark as the 65 ones were bigger and used different frame pads. Eyeball your mounts and see if they are the same. You may have to use the 64 mounts. Distributors will interchange, but the advance curves may be different. Don't see a problem if you have to switch them. Hope this helps, Mark
