My 59 GMC 630 series has a 503 Cu GMC inline 6 cylinder engine in it,,the
engine block is two pieces bolted together,, the upper cylinders section is
bolted to the lower crancase section,,,its quite a big engine similar in size
to a 6-71 driptroit,, it too has holley four barrel on the passenger side,,
this engine was common in 50's larger trucks they are getting rareer and hard
to find,,,,,,mine revs almost as crips as a small block Chevy... lots of
torqe.. gets about 3 mile to the gal...My truck is for sale if any one may be
interested Email me for particulars
Richard Scott
Covington Washington
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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