Originally Posted by RJD
... the GMC engines are about 5 inches longer which is why the radiator is tucked inside the core support.

...the 248 is correct for 1951 GMC.

The GMC engines were about 2" longer than the Chevrolet engines.

The truck would have come with a 228 originally. 248s came in 2 ton and larger trucks. Dealer replacement with a 248 under warranty is very possible.







"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.