The 400,350,327,and 283s are proven and a easy install. Any of the 4 would be my choice .Everyone uses the tried and true 350 unless the others are found first.My favorite is a 400 use 350 rods,stroke it to a 406 great power and torque for trucks.

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1952 Chevy 3100
1953 Chevy 4400
1965 Nova
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