These are Speed Pro Forged pistons, part#L2256F30 they are flat top with 4 valve reliefs and are .030 over. These are on ZZ4 rods (powder metal). These were pulled from my 91 Z28 with approx. 8K miles. I pulled the motor to fix a pesky oil pan leak and now I got the bug to change my setup. When I pulled these out I noticed some scoring on the top land of the pistons (see pics) I took these to a local engine builder to see why this happened and he told me it was from an overly rich condition that washed the oil down. He told me that the pistons are definately reusable and not to worry. He reccomended I lightly sand the scoring and I would be fine. He had actually seen this before. I had all intentions of using them again but with my new setup I would be exceeding the limits of these rods. I need to buy H-beam rods and of course they are all floating piston pins which these pistons are not. So now I also need to get new pistons. This is a great deal for someone building a 500hp engine. You will not be disappointed. I'm looking to get $225 for them. If you are in the Cleveland area you are more then welcome to swing by and look at them.

 

One more

 

cleveland ohio?

 

Yep Parma to be exact.

 

im in parma also near tri c, is there any way i could get one and take it to my shop i use and make sure they will work, i could leave you some cash for corlateral (spelling)

 

No problem. I will send you a pm.

 

thanks

 

These are back up for grabs. 5.0slayer is contemplating another setup. He took a piston to his engine builder and they confirmed that these are good to run. I think the lighting in the pic actually makes the damage look worse then it is.

 

Can you post a pic of the damaged piston looking down the side from teh top so it is easier to see how deep it really is? How many of the pistons were damaged?

Mike

 

I will try to take a pic tomorrow, but I doubt if you would be able to see it. I didn't when they were installed. I didn't see the damage until I pulled them out. Every piston shows some sign, but again its really not too bad. If my engine guy told me they were junk I would have just tossed them, but he assured me they were fine.

If you are serious I can even just charge you for one and ship it to you that way you have it and can take it to an engine builder. If you don't like it you can ship it back I will return your money and we could just split the shipping on it.

 

its laget there good the pics really do make then look bad, i picked one up and dident even think i had to take it to the builder but i did, just waitin for the pay check now,

 

sold ?

 

I'm waiting on payment, check back with me in a week. If I still have them I will offer them to you.

 

I might be interested if the sale falls through. Can you tell me what the ring widths are?

 

They are the wider 5/64 rings.

 

Ok these are available. I was told I would have an answer by friday, I didn't hear anything so next in line.

 

sry i was called and told my block was cracked in cyl 6, and it was goin to need line honed, so i ended up goin to summit and getin a crate 383 short block. so sry to keep u waitin, now its no turbo this year, maybe a nos system

 

I think I was next in line

I should know if my block is ok after being pressure checked

Please confirm you still have them

Thanks

 

Sounds good. Yeah they are still available.

 

Give me 2 days to comfirm my blocks condition

 

No problem

 

Happy Holidays
well for somebody...my block was pressure checked and leaks in 3 places where a heli coil was installed....rats.....now I need a whole short block
sorry but I can not use the pistons and rods

 

somebody buy these b4 you get your block checked, seems like everybodys block is bad when they want them

 

I was even thinking of sleeving the cylinder....but that is not going to help where my cracks are in the lifted valley

 

No kidding...I figure if I can't sell them I will just put them away and use them on another build. No biggie.

I feel bad for you guys with all of your cracked/damaged blocks though.

 

Are these still available? I know it's been over a year but doesn't hurt to ask.

 

Yes I still have them...just like you said it never hurts to ask.

 

WOW, let me check with the guy who's gonna be doing my block machining tomorrow. I'll ask him if he thinks the scoring is workable, and if these are the right pistons for my build (My dynamic compression ratio is coming up to just under 9:1 with the parts I wanna run, too much for a street motor. Static with these pistons would be 11:1).

 

Just let me know.