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Old Today, 08:50 AM   #3
70STOVEBOLT
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Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 7,062
Re: Big block brake vacuum pipe

It came off of a 402 out of a 71 motorhome, but i got the engine second hand, so I can't say if it was factory or not. It does use a hose at the booster end.
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70 C/10 SWB 402/TH400/3.73 "The Needy Beast"
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Owner installed options:
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2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear
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