<VV> Drivetrain Compatability

[Bryan Blackwell]

On Mar 11, 2011, at 8:02 PM, Tom Hughes wrote:

> Oh wise ones. I seek your knowledge. I’m about to install a ’64 rear
> suspension and ’64 differential into my ’63 daily-driver/track car. The
> current drivetrain is the original 102 engine and 4-speed transmission. I’m
> also going to be building a 140 late engine that I want to install in place
> of the 102. Here are my questions:
> 
>   1. Do I use an early or late bellhousing?

My understanding is the bellhousing should match the crank, so a late.

>   2. Will the ’64 diff. and ’63 tranny bolt right up?

Pretty sure this is yes.

>   3. Will I be able to use the early clutch assembly and input shaft?

I think so.  You should check the clutch fork ball height.  The input shaft should match the trans.

>   4. Is a 3.89 rear end ratio too steep for a car that sees many miles at
>   highway speeds?

That's a matter of opinion.  It depends a little on how fast you want to go - 75 with a 3.89 would be a lot of RPM.  There would be a little more wear on the engine, but the big factor is wear on the people on the highway, most folks want a more relaxed cruise.

--Bryan