Your 6107877 intake is probably really a 6107377 which was used on 1947-49 FC 300 and 350 models. You don't say what model your truck is.
2194002 intakes were used on GMC 228 engines in 1951 and 52 (including mine).
What is your head casting number?
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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