I've been on Big Bolts and now I'll ask you guys, engine has 8 bolts on valve covers, forward distributer,wide across intake manifold, front runners on intake start at second set of cylinders eek water pump is big unit looks like turbo casting, big engine in a 1951 GMC 640. I know it's not original engine, I just can't I.D. it. Thanks,.....Rick


'36 Tall cab Chevy 1.5 ton, '36 Low cab Chevy 1.5 ton, '53 GMC 2 ton, '51 GMC 640 5 ton, '47 Dodge 2 ton, '42 GMC CCKW 353 6X6.