Probe pistons
If you plan on any boost or power adder at all go Wiseco. Their ringlands are stronger and have the best rep out there for the all out hardecore power adder dudes. If you need a milder piston Mahle, Diamond, JE and many others can fill the bill but Wiseco makes the top P/A LSx piston IMHO. They have recently released a new design which provideds even more strength in the ringland area.
They have put a lot of research in the LSx stuff and it surely shows imho. Tons of off the shelf options now so what you need is prolly a shelf item and not a custom$$$$$$$$
It will be in my 383 or 402 no doubt............
They have put a lot of research in the LSx stuff and it surely shows imho. Tons of off the shelf options now so what you need is prolly a shelf item and not a custom$$$$$$$$
It will be in my 383 or 402 no doubt............
I have probe srs series pistons in my 347. 700++hp and they were flawless. I beat the crap out of my motor everyday until #6 cylinder sleeve let go. Just tore the motor down and the piston is unblemished. HKE built this motor. I don't think Erik would've built me this motor with probe pistons if they are junk.
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The Probe pistons are decent pistons but they don't have a lot of skirt rigidity, and they tend to collapse the skirts under really high cylinder pressures, especially with nitrous. HKE considers them in budget rebuilds where power adders aren't planned. Erik considers the Probe pistons respectable for NA only apps. They'll be fine with mild FI so long as the tune is good, but Erik would rather use stronger pistons if it is known that a power adder is in the cards and budget allows.
The Probe pistons are decent pistons but they don't have a lot of skirt rigidity, and they tend to collapse the skirts under really high cylinder pressures, especially with nitrous. HKE considers them in budget rebuilds where power adders aren't planned. Erik considers the Probe pistons respectable for NA only apps. They'll be fine with mild FI so long as the tune is good, but Erik would rather use stronger pistons if it is known that a power adder is in the cards and budget allows.
My next build will be an iron 370 or 408 with either Diamond or Weisco pistons. I wouldn't hesitate on doing another budget build with these probe pistons. Low power output of 650rwhp or less is what HKE intended my motor for but power is addicting and we all know how that ends up
FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
The probes are good and very light but if you are looking for a piston to beat on more the Wisecos and Diamonds are stronger for more extreme power adder usage. Now You can also get the Wiseco shelf stock pistons optioned with the GFX rings which is nice since they are very high end 1.2, 1.2, 3.0 mm steel barrel faced top rings with napier seconds and can take a ton of abuse too.
We have use the Probes though many time with no issues and that 14217 is superlight but it's not made for exeme abuse. The dished ones are a little heavy duty but again they make everything pretty light.
We have use the Probes though many time with no issues and that 14217 is superlight but it's not made for exeme abuse. The dished ones are a little heavy duty but again they make everything pretty light.
I had Probe flat-tops when I planned on a 421 build. Machinist who had been working on race engines for 30 some years said they were a great company. Probe said they could easily handle a 250 shot, and possibly more. Compared side to side with Diamond flat tops the Probes looked stronger, had thicker skirts and the valve reliefs were recessed rather than cut out which you see on some other brands. They aren't exactly cheap, but I wouldn't hesitate to use them.
im consulting a few builders right now trying to decided if i want to rebuild with my block or buy another ls1 or if the gods smile on me used ls2 so depending on how it pans out i may or may not end up using either the probe or the wiseco pistons
FormerVendor
Joined: Nov 2001
Posts: 3,065
Likes: 6
From: Houston, Tx.
I had Probe flat-tops when I planned on a 421 build. Machinist who had been working on race engines for 30 some years said they were a great company. Probe said they could easily handle a 250 shot, and possibly more. Compared side to side with Diamond flat tops the Probes looked stronger, had thicker skirts and the valve reliefs were recessed rather than cut out which you see on some other brands. They aren't exactly cheap, but I wouldn't hesitate to use them.