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1972 GMC 637 V-8 video

01-13-2014, 08:32 PM

MusicMan70

Senior Member

Join Date: Feb 2011

Location: Corona, CA

Posts: 1,820

1972 GMC 637 V-8 video

From the GMC 6066 site; a posted vid of this Kool engine

GMC 637 cid v8 gas - YouTube

Info from Jolly's site;

637 V8

275 @ 2800 rpm

185 @ 2800 rpm

250 @ 1550 rpm

560 @ 1550 rpm

5.125" - 3.86"

637.0 cu. in.
(10.4L)

7.5 to 1

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MusicMan70
1961 GMC Suburban

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