The engine in the Corvette is not a 292 production engine. Look at pictures here. Notice the location of the distributor.

The 'vette engine may be a 270 GMC bored to 292.

"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.