P5007414 Pistons

The approximate Compression heights for pistons are as follows

4.00” stroke. 1.47”
3.58” stroke. 1.67”. 360 engine
3.31” stroke. 1.80”. 340/318/273

If you run a piston with a compression height on the stock stoke engines and use a stock length connecting rod your pistons will be too far down in the cylinder for reasonable compression. You would have to make up the difference in the connecting rod and there are not any standard rod journal connecting rods I know of that will work. You are looking at custom rods most likely.

If you are staying stock stroke it is simpler in my opinion to get the right pistons and sell the ones designed for the 4.0” stroke crankshaft.

RRR treed me.