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Old 06-06-2007, 07:46 AM
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grantprix grantprix is offline
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Default Re: 1969 Model SJ 4 speed Grand Prix project

The '69 428-HO 390hp GP's with any manual trans is code WL. This engine/trans combo was not offered available with a/c. I do know of 1 documented car that somehow slipped through with a/c. The M20 wide ratio cars got 3:55 rear gears standard with taller gears optional, the M21 close ratio cars all got 3:90's.


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FWIW, engine code WF is the 370hp 428, WG would be the 390hp 428 HO. Original tranny should be M20, M21 is 3.90/4.33 gear HO without A/C only.
Pretty rare car, 1 of 333 (includes 3 speed), I don't have a breakdown between the models (J AND SJ).

Very cool car, good luck with the sale.

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