stroker with standard bore???
 

I have a question.. Is it possible to build a stroker using the standard bore size? The reason why I ask is because of the price it costs to get an engine bored and seasoned for building. Can I take a new block and use the stroker crank and instead of building a 347 you would have a 342? I know this may sound weird but I'm just looking at my options. Thanks

That is correct, 342, i believe people do it all the time, a standard bore 331 would be 327 if im not mistaken.

id rather have standard bore also for the lighter pistons, usually a block undergoing a stroker kit needs fresh bores, unless it's a brand new block.

That's right. You can put a 3.25" stroke crank with stock 4.000 bore and get a 327 cu. in.

3.25 x 2^2 x Pi x 8 = 326.725636 or 327 cu. in.

The nice thing about boring to say .030" over is that you get a 'brand new hole' with a nice cross-hatch that promotes good sealing of the rings. Plus, you're probably going to be putting a new set of lightweight aluminum pistons in anyways. The only real 'drawback' would be that your thinning the clyinder walls. But, .030" is more than safe on a stock 302 block.

E

Also when using a big intake valve the .030 will help unshroud it. Then you will get the 5 extra cubes + better flowing intake charge.

With a stroker, can you just change the crank, or do you have to change the rods and pistons to keep from putting the pistons through the heads? It's a dumb question, but I really have no idea.

Caymon

yeah you have to change to the longer rod, and crank, and pistons cause the pin bore in the piston has to be moved up to compensate for the longer throw of the crank and rods.

At the moment I am looking at all my options. I can spend $500 on getting this block prepared or spend $400 on a new one. That is why I am curious.