FlamingTA

iTrader: (8)

I got my shortblock back and wanted to take a pic of how much of the piston is out of the hole at BDC. This is a 4.125" stroke Callies crank in a LS2 block.



I remember someone wanting to know how much the piston was out.

Now, I know I will get some ppl that will say that was stupid or that it will burn oil or something like that. I knew it wasn't the most popular option for a stroker. Is it an ideal setup, no. Is it for big power adders, no. Do you want any old machine shop to build you one, no. It should be good for my use tho, a good street motor with good low end.

82cetuner

iTrader: (9)

if it works for you thats all that matters and as long as all 3 rings are sealing you should have no issues.

Nissan LS240

iTrader: (1)

Got the same setup on my LS1, callies 383 stroker with compstar rods, had no problems with it except I had to chop most of the windage tray and space it out since I had to use a modified oil pan.

ROCNDAV

iTrader: (100)

Here's a pic of my #8 piston at the bottom of it's stroke



And here's the Rod bolt hitting the block, before the block was clearanced:



Lunati 395 ci stroker kit.

Have fun with that bad boy of yours!

Spinner

Texas Speed 429 LS3 w/ 4.125 stroke, short skirt wiseco piston



http://www.camaro5.com/forums/showthread.php?t=169780

stevieturbo

I'll post a picture later of my Wiseco pistons and how the skirt was damaged because of this same thing. Although I was on a 4.0" stroke.

IMO for long stroke engines the bore tolerances need to be tight, and the pistons needs a well designed skirt.

I'm going for a shorter stroke crank now.

Jontall

Darton sleeves would work great for those wanting a long stroke like this.

allblowdup

One of the main things towatch for is a properly bevelled slleeve bottom. If it is to sharp it starts to shave the piston. My ls3 4.125 stroke has about 35 hrs on it now with no issues so far.

Haans249

iTrader: (24)

Actually, the biggest issue with the longer stroke on stock sleeves is the piston taper. If the piston comes out of the hole too much at BDC, without the proper piston taper, the piston will rock too much, beating up the skirts. This is why custom pistons are generally better than off the shelf pistons made for a specific stroke. Longevity is the issue without longer (darton LS7) sleeves if using shelf pistons.

LS6

This should be sticky thread