240/300 Cast Pistons

[powersmythe]

Cast Pistons

The 1965 to 1968 240/300 engines have .912" wrist pins.
The 240 from these years uses the Ford 289/302 V8 pistons and the 300 can use the Ford 351W pistons.
You will find forged and cast pistons among the variety of V8 pistons.

The 1969 and later engines have a .975" wrist pin.
The Ford 390 V8 pistons may also be used but requires a .050" overbore.

There are cast pistons specifically made for the 300 six.
The Hypereutectic cast pistons are preferred over the other cast pistons.

The following is a list of cast pistons with the .975" pin pistons

240 cast piston:
KB/Silv-O-lite 1147

300 cast pistons:

Speed Pro H519P
Speed Pro H554CP
Speed Pro H674P (metric rings)
Silv-O-Lite 1170
KB/Silv-O-lite 1186
KB/Silv-O-lite S3171H (metric rings)
KB/Silv-O-lite 3117H
KB/Silv-O-lite 3118H
KB/Silv-O-lite 3158H

[Henry W]

Reserved #1

[Henry W]

Reserved #2

[Henry W]

Reserved #3