What I should have done with my Rolls Royce.... Silver Cloud II LS swap and drivetrain upgrade

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I had a very similar Rolls to this one, a Silver Cloud III, whereas this is a Silver Cloud II. Almost the same paint scheme even.

A lot of fun but severely underpowered and a mushy suspension which of course was seen as luxurious for the time.

This would have definitely upped the fun factor but then it would never sell as an original for what it did:

This 1961 Rolls-Royce Silver Cloud II was built by Charlotte Speed Shop in Charlotte, North Carolina. The company restored the car several years earlier and the owner brought it back for a performance upgrade. The luxurious sedan now rides on a custom suspension with a Flaming River steering rack, tubular control arms, QA1 adjustable coilovers, and Wilwood disc brakes. They replaced the factory powertrain with a 6.2 L LS3 V8 that makes 430 horsepower and 425 lb-ft of torque to the rear wheels through a 4L65E four-speed automatic and Ford 9-inch rear end.