Need some power for your '57? This original 283 small-balancer mill wasnestled in-between a big block and four-bolt main small-block. While notboasting a ton of cubes, the 283 has always been a high winder, and cangive any car some high revving pep. With a forged steel crank (all 283ahad forged cranks, ALL OF THEM!), they could spin well.