3400 pistons and connecting rods

[92cavquest]

I have been looking at a couple of pistons on summitracing.com. Using their search feature I came up with two piston options for the 3400.

Their part #'s are STL-H847CP50MM and STL-H847CP. Will either of these work and what would be CR be on a stock head?

Also, I'm having no luck with connecting rods. I've read on here that SBC connecting rods will work with a little modification, but can anyone point me in the right direction?

[bszopi]

Those are the same, except one is an overbore piston (.5mm or 0.020").

As far as connecting rods : http://60degreev6.com/content/Connecting_Rods_0

[92cavquest]

Good read on the connecting rods. Thanks a bunch.

Does anyone have any experience with these pistons? Anyone recommend them or know what the CR might be?

[bszopi]

Pretty sure they are just stock replacements. If Summit has data on them (compression height, dish volume, etc), you can always plug it into the site's CR calculator (http://60degreev6.com/CR_Calculator) to determine what CR you will end up with.