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Thanks for sharing and I hope you're willing to post some pics of your Cabby.

I completely agree that Troy is amazing. Ever since that turqouis pro street Impala he built waaay back I've admired...

Anyone know anything about the twin turbo nailhead being built at Rad Rods (Troy Trepanier's garage)? Rumor is that the bottom end is getting reinforced with 4 bolt mains... This is a dream build for...

Thanks Sean. This will be a great help in figuring out an accurate backspace for the wheels I want to get.
-Chaz

@Sean: Thanks! Though I'm realizing I may have asked the wrong question. I'm actually wondering what the width is of the entire housing from one end of the drum plate to the other side.

Does anyone know what the width of the rear axle is on the 1963 Riviera?
Cheers,
-Chaz

This is a really old thread and you may have already figured out your problem --and if you have please post what you did to fix it. I'll post anyway in the event others are still having similar...

Awesome info. Thanks to everyone.

Thanks for the replies guys.

Making a 401 into a 425 surely isn't the intent. I just want to squeeze out the most without making it into a needy motor. Hopefully turning my Riv into a strong and...

Hi,
I own a base model '63 Riviera that has a steering wheel sitting 45 degrees off top center when driving straight ahead. I purchased a service manual from Bilko and in spite of th detailed...

Hi,
I was wondering if the 401 block had any similarities to the 425 or if they were different castings altogether.
~If they are different, then how much more can a 401 be modified in size and...