Advanced Engineering Tech - 383 stroker / 6.125" vs 6.000" / 2.100 vs. 2.000

I am looking to put together a budget high compression E85 stroker based on a 5.3L Aluminum block I can get for $150. I would like someone to offer some advice on parts choices and what would make more sense

1. Connecting Rods - would it make more sense to use 6.125" or 6.200". I am looking at shelf pistons and both are available for a 3.905" bore along with a 4.000" stroke crankshaft

2. Crankshaft - Callies compstar cranks are available with std 2.100" journals and they are also offered in a small journal 2.000". I prefer the smaller journals for decreased bearing speed

3. LS specific on center connecting rods vs. std SBC connecting rods - is there machine work that needs to be done to get these to work in an engine.

Most of the 6.200" small journal rods I have found are NOT LS specific.

I am looking to put together a budget high compression E85 stroker based on a 5.3L Aluminum block I can get for $150. I would like someone to offer some advice on parts choices and what would make more sense

1. Connecting Rods - would it make more sense to use 6.125" or 6.200". I am looking at shelf pistons and both are available for a 3.905" bore along with a 4.000" stroke crankshaft

2. Crankshaft - Callies compstar cranks are available with std 2.100" journals and they are also offered in a small journal 2.000". I prefer the smaller journals for decreased bearing speed

3. LS specific on center connecting rods vs. std SBC connecting rods - is there machine work that needs to be done to get these to work in an engine.

Most of the 6.200" small journal rods I have found are NOT LS specific.

As for the advice you asked for:

4) None of the above.

Have you checked what it will cost to get 3.90 pistons into the 3.78 holes in a 5.3 aluminnum block? You can bore an iron block 5.3 to 3.90, but not OEM sleeved aluminum block.

Perhaps you meant a 5.7 alumimun block?

Your plan surely seems like the hard way to get 383 cubes. A .060 over 6.0L is 375 and allows you to use the L92 heads vs. cathedral ports for the smaller bore engine. Buy the right 6.0L from a yard and it will have the heads.

Maybe you just want to spend a lot of money for a little power. But then why would you need a forged crank, etc?

I guess my idea of a "budget" engine doesn't jibe with yours.

My $.02


Jon

Dont over think it,keep it simple.Use shelf stock components and save yourself the headache

Im with Jon, crank rods and pistons.......is pretty much the same regardless of engine size.

I was gonna build an lsx motor until I realized I can build a 632 for less. How about a stock 6.0.......97$ ls9 cam, 60 lb injectors, an s475 turbo (650$) and serve......

BTW, im actually building a 383 (old small block) currently for a friend, e85, 13 to 1 je's (200$ craigs list find) 6 inch rod......we already had a crank and block and decent heads.

You can bore an iron block 5.3 to 3.90, but not OEM sleeved aluminum block.

Are you sure about that?

I was told you could take the 5.3 aluminum block to 3.905 also