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489 case

Old 02-08-2018, 06:09 PM
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489 case

I was surprised when rebuilding my rear end in my 64Polara. The case is a 742and inside was a 273 sure-grip. I was sure I'd find an open gear in there. I replaced the 742 with a 489 case and a 3.91 sure-grip. Anyone out there know anything about how a 2.73 sure-grip wound up in this former 318 car? The engine I built is a 64 426 wedge bored 0.060" over. I suspect once I get it on a dyno it will push 450HP.

Bill
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Old 02-08-2018, 06:44 PM
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727 or 4 speed?
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Old 02-09-2018, 06:43 AM
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Old 02-09-2018, 06:52 AM
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Were you able keep the push buttons? Do you have pictures?
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Old 02-09-2018, 09:39 AM
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push buttons

Yes, it will still have its push buttons. Nostalgically correct with some modern upgrades (disc brakes) to make it manageable. I have lots of photos but I don't have many with me. I'll find what I have and post some.
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Old 02-09-2018, 09:50 AM
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Cool, I have a 64 Ford and understand the disk breaks the rears should be here on Monday.
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Old 02-10-2018, 11:13 AM
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Ford

What 64 Ford do you have? The Thunderbolts were really sweet. That is what it looked like when I got it. Good from far, but far from good. Lots of work into this car but it is coming out sweet.
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Old 02-10-2018, 11:35 AM
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Very nice ride....
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Old 02-10-2018, 01:26 PM
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Here's my Fairlane,
489 case-64-fairlane-internet.jpg
It's just your run of the mill 455 hp 289.
Under the hood is to hard to make power and be period correct
The wheels are going to be aluminum slots, steel OEM with the dog dish caps or torque thrust D
I have a complete Calvert rear suspension and a narrowed 8.8 with a 3.73 gear
I have removed so much cast iron from the front of the car it is sitting about 2' higher and I like it.
The 289 has a nasty little attitude and I'm' looking forward to making pass's with it.

Last edited by Iowan; 02-10-2018 at 03:32 PM.
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