LA 318 advice

Question for George Jets…….
Do you have a factory original piston from like a 69 318 that’s not in an engine you could measure the compression height on?
Or, know what that dimension is?

Often, the aftermarket “stock replacement” pistons have a different height than the originals.

@PRH

Just measured the compression height on this original stock bore '68 318 piston.

Comes in at 1.77 ch, just as stated above for the '68 - '69 318 engines.

Screenshot_20241214-105839_Gallery.jpg

20241214_110953.jpg

Free Floating Wrist Pins too.
These fit the stock bore 318 blocks.

The Sealed Power 526AP come in at 1.754 ch, and are only available in .020 and .030 overbore.



74 Stock Bore 318.jpg

Stock Bore '74 318 block ready to go for the '68 9.2:1 cr pistons and light free floating stock rods.
Pistons will be .040 ths down in the hole.

And @66fs thanks for this too:

66fs Piston ch.png



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