One other thing that may be a "no go", the valve cover bolt pattern might not match, it depends on the heads that are currently on your 283, if they are the original heads from '57, the new style Edelbrock covers won't fit. Check that out before you proceed with any PCV modifications. Small block heads from '55 through '58 or '59 use bolt patterns that are offset, later heads will have the bolt hole directly across from each other.

Last edited by 78buckshot; 03/03/2024 7:51 PM.

1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy