Re: 66 k20
Factory windshield washers, engine appears to be early `70`s by the valve covers and the quadrajet, just guessing or a top end change...sweet truck.
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`64 C10 vortec 350/350/373 posi
`69 RS/SS 350/350/308
`37 Ford 406/350/324 traclock
`68 Dart 370/904/323 suregrip
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