Slant-Six to LA small block conversion.

savoy413 said

Hi,

I have some questions about converting my 1966 Australian Valiant from the slant-six to a 273, 318, 340, 360 small block. I have a reconditioned 904 torqueflite which has been used with my slant-six. Can this torqueflite be used behind a small-block V8?

Also, can I use the six cylinder radiator?

Can I use the six cylinder torsion bars or are they bigger for a V8?

Can I use the six cylinder drive shaft or does it have to be modified?


Will the 9 inch front drum brakes be okay for a V8?

Any other advice on what has to be done for this swap would be appreciated.



Thanks.

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As stated, bellhousing bolt pattern for transmission is different so that will not bolt up.

/6 radiator is definitely too small especially for warmer climates.

/6 torsion bars are soft even for your current engine. I strongly recommend 1.03" bars.

Current driveshaft should fit if you continue using a 904 transmission, someone else please confirm though...?

9" front drums are dangerous on anything unless you drive like a grandma in a place with no hills or traffic, bare minimum upgrade to 10" front drums or at best go to 1973-up front disc brakes.

I imagine you're looking to swap a V8 for more acceleration and speed in which case any extra money you're willing to spend to upgrade your suspension and brakes will be worthwhile. Stock base components for a 1966 car were just adequate enough for the expectations of the time which were far less than today.