93LS1Ws6

iTrader: (12)

Need something cleared up, im getting mixed signals from a couple of different people. I bought a block from someone on here, and it was supposed to be clean honed to 3.907. I have been doing some research adn it seems like thats way too much? Im also having an issue finding pistons to fit. Some are 3.908 but i dont think i want to get any more out of it. So give me your opinions please! Thanks!

Here's the thread with engine pics! First pic is the block! Thanks!
https://ls1tech.com/forums/parts-cla...tc-w-pics.html

racer7088

Mahle makes a few pistons for larger over bores than normal and so can Diamond for a small charge extra as we do them all the time. Generally a shop hones the block FOR a set of pistons not just to whatever they want though? Do you KNOW exactly what the bores are at and if so PM me as we can get you a piston to fit but the selection drops a LOT when you are outside of a standard bore size.

93LS1Ws6

iTrader: (12)

When the block gets here ill get an exact measurment. I it still safe to run if it us a 3.907 bore? Yeah I know they usually hone to the pistons, but i got the block for a good price, so I figured I would make something work. I'm just getting used to this aluminum block stuff. Thanks for thr help!

racer7088

Yes it should be fine to run.

crainholio

iTrader: (2)

The visible scoring in several of the visible bores would cause me to pass on that block, and the hone crosshatch pattern looks like somebody had a party w/ a cheap 3-stone rig with their electric drill.

Good luck making it run well.

davidws6

iTrader: (36)

+ 1 on what crainholio said as the cylinder bores do not look like a professional job.

93LS1Ws6

iTrader: (12)

Ill be taking it to the machine shop to get work done then. I guess ill see what they say.

crainholio

iTrader: (2)

Good luck dude, usually a great deal on a block ends up costing more in machine work.

93LS1Ws6

iTrader: (12)

Thanks, yeah i know. Ill use it as long as i dont have to re sleave it and that its safe to run. .