NHRA (Recommendation for 1968)
Only for '1957' Chevy Coupes and Sedans (150's, 210's and BelAir's)
57' D/G...........327 C.I. .........Maximum Cubic Inches = 337)
57' E/G...........302 C.I. .........Maximum Cubic Inches = 311)
57' F/G...........283 C.I. .........Maximum Cubic Inches = 292)
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