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81 vette engine swap

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Old Mar 28, 2020 | 11:47 PM
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Default 81 vette engine swap

New to the forum so I may be posting this in the wrong place. I have an 81 vette that I'm finally getting around to dropping a new engine into. My question is should i rob parts (power steering pump, alternator, compressor) off the factory engine. Or are there specific parts I should replace. Thanks in advance for any advice.
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Old Mar 28, 2020 | 11:58 PM
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I would replace the water pump, but keep the rest as long as they are working and in good condition.

You can change the compressor to a new style from places like old air, but it is not cheap. You should convert the system to the new A134 Freon. Read up on it. If the system was working I would just transfer it over.
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Old Mar 29, 2020 | 12:04 AM
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The engine comes with a new water pump, carb and fuel pump. The A/c working isn't my biggest concer right now, just want to get it back on the road.
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Old Mar 29, 2020 | 12:08 AM
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My 71

Transfer the Alt and check the mounting for the PS before you put the engine in .

If going to Electric Fans you need to up grade the Alt.

Last edited by BLUE1972; Mar 29, 2020 at 12:14 AM.
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Old Mar 29, 2020 | 12:11 AM
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Pretty straight forward swap. Putting right back in a build 350. Everything bolts up in the same spot. No electric fan.
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Old Mar 29, 2020 | 06:30 AM
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Engine comes with new water pump. Odds near 100% it is the wrong pump. Too long. Belts will not line up.
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Old Mar 29, 2020 | 09:38 AM
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^^^^this^^^^
-add-
and most of the pulleys, brackets, washers/spacers are specific to a vette setup ... Do NOT lose them ... transfer ALL that over to new motor. Buy a NEW water pump specific to Your year vette. Many folk are ignorant of this and chase belt problems.

Last edited by jackson; Mar 29, 2020 at 09:44 AM.
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Old Mar 29, 2020 | 09:55 AM
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Originally Posted by hunter94
The engine comes with a new water pump, carb and fuel pump. The A/c working isn't my biggest concer right now, just want to get it back on the road.
but now would be the time to consider ac parts if needed...while engine out..like the accumulator, some hoses, filters , etc..while waiting for parts from advice above..
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