Yup, vac wipers.

Mine is missing the vac wiper motor....the car is pretty rusty, I bought another '59 and started using this one for parts, wife got in one of her every two decade snits and I sold the 'good' '59 and several Saab Sonett's. Went to junk this one and she flipped a bit switch and decided she wants it kept and eventually restored.

With no drivetrain, rust, and parts (like the vac motor) missing, it's a good candidate for a conversion. The glass is good, frame intact, and powering with a 617 is going to be cheaper than finding and rebuilding an original 223. I'll adapt another electric wiper motor, and will have to bodge a heater core since that is gone.

I could go the hot rod route and drop an FE block right in, same mounts, but that's been done to death and guzzles fuel.

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Eric, CPO, Submarines, retired.
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Mine: '68 Corvette LS1/4L65E, 83 240D, 2000 GMC 4x4, 08 FLSTC Anniv
Hers: '72 Corvette 454/4spd, '99 MB SLK, '93 Metro vert, 78 240D, '92 Silverado, '65 Fjord Rustang, '59 Fjord Fairlane, '17 Slingshot.