How do I know which piston type to buy? I'm looking to forge my stock bottom end LS1 and plan on supercharging in the future.

So I would assume I will need a lower compression piston? I have Patriot Stg II heads (59cc) on right now but will probably be switching back to stock heads when I procharge it.

 

I want wiseco pistons, just not sure which ones...Or which connecting rods?

 

Are you going to run a stock crank? That will determine your rod length. Are you going to hone the block to a 347? I have mahle forged pistion with a -4cc dish. I'm very hapy with them so far.

http://mycarpics.shutterfly.com/80

 

Keeping the stock crank...Could I keep it 346 and be fine? I'm slowly building it. Girlfriend will hopefully be buying me the pistons rods and rings for my B-day so just wondering which ones they should be...

 

You can keep it a 346. The 346 bore size is 3.898" and the 347 is 3.908" bore. So if you want a good deep hone you can take the holes that much bigger. Do you have the block out or is it still in the car? You may want to wait to order the pistion's untill you take some measurements or have a machine shop mic the hole's. Also dont forget to have the rotating assembly ballanced after you get your pistions and rods.

 

It's still in the car....Would I have to remove it to put in the pistons/rods? Keeping stock crank. There is a guy near me with a reputable machine shop but how much would it cost to have it honed?

 

If this was my build... I would have the block honed, put in new cam bearings, rod bearings, and main bearing. have thebearings line honed at the machine shop. then have the rotating assembly ballanced. The amount of tare down to change the rods and pistons in the car would be a pain in the ***... you would be a 1/2 hour max to have the engine out at that point. With so much work and money going in to what your already doing, spend alittle more money and alittle more time do it right and do it once.