Not the race pistons. I believe the LB7 and LLY pistons are not made by mahle.
Curiosity.....Pistons?
- Thread starter coker6303
- Start date
Not the race pistons. I believe the LB7 and LLY pistons are not made by mahle.
ive ran the ppe 300 tune for a loooong time, now im running efi with a stronger tune than that. those tunes have plenty of fuel IMO... all im saying is if i had more air and more fuel, i wouldnt hesitate on testing my faith
I want to build my motor soon, I want to be capable of pushing 800-850 hp but will daily drive between 500-600, I want reliability and I am not affraid to spend the extra but I dont want to be replacing rings every 30 000 miles, are the cast mahles any better or just stick with stock pistons cut and coated?
Stock and mahle race pistons are both cast are they not? If so can we please refer to them as race mahle and stock delipped, it gets a bit confusing imo
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The Race cast come with coating on the sides and with or without valve cut outs. There are some machine shops that say that the Race cast are weaker then the LB7 Cast pistons.
Mahle Cast Race Piston
Stock Mahle piston nothing done to it.
Cast cut and coated
I've seen the same results. My street truck is at 93,000 miles on my stock LLY pistons over 700hp and running fine for 65,000 of those miles. It don't see near the stress or heat of a competition motor. My pistons are decked, delipped, and not coated. I would not deck them next time, but delipping has proven to work well.
Hmm I haven't heard that before, it is good to know though. So IF I need to overbore and I can get away with .010 over, could rings be enough for stock pistons? Or would the smart thing to do be to bore it over alittle more and just get new pistons? That extra clearane would either help or hurt it in a big way, just not sure which. I do think that 10 over could be doable with some rings, or is that wishful thinking?
Hes asking if he can run a standard piston with new rings in a .010 bored over motor
I see that after reading again James.
Yea I would not run that much clearence.At that point you have paid for boring and you would not be much more into a set of new pistons with rings clips and pins.
Personally I think fingers design has it going on. I wasn't comfortable running the convetional cast piston setup or forged and I am willing to take the risk to see if i'm right (How else are we going to find out unless people run them if i'm wrong i'm wrong life goes on). The way I look at it is I know when to worry about delipped cast pistons and if nothing else fingers design is atleast as strong but with the potential of being stronger.
Yeah I've read the whole thread and seems like a pretty smart design, I just can't take a chance of it breaking again money wise. I want something that has been proven in a dd. And thanks Henry ill take that advice about the ring gap.
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