Wiseco Pro Tru pistons

-
subcom

subcom

FABO Gold Member
FABO Gold Member
Joined
Sep 17, 2010
Messages
1,823
Reaction score
1,160
Location
South Florida
I've been piston shopping for my next 5.9 Magnum turbo build and have found a few forged flat tops with basically the same specs across many brands; ICON, JE, Wiseco.

The Wisecos seem to be the best priced (as low as $409 w/ rings). I realize they aren't necessarily a turbo piston and will put compression at around 10.5:1 but they seem like a good bargain for a forged piston and my goals (about 15psi max).
Im thinking about these pistons, stock crank and the good Scat I beam rods. Stock bore and stroke, E85 fuel. Thoughts?
Hughes Engines
 
Well I think it will be a good cheap upgrade but compression maybe a little high for 15psi. I’m running Icon and we think I am around 9.5. Maybe Cometic can make a thicker head gasket to help lower it some. Still stock head?
Look how far you have come with stock parts! Impressive!
 
dusted said:
Well I think it will be a good cheap upgrade but compression maybe a little high for 15psi. I’m running Icon and we think I am around 9.5. Maybe Cometic can make a thicker head gasket to help lower it some. Still stock head?
Look how far you have come with stock parts! Impressive!
Click to expand...
I was considering the Icon 742s which
dusted said:
Well I think it will be a good cheap upgrade but compression maybe a little high for 15psi. I’m running Icon and we think I am around 9.5. Maybe Cometic can make a thicker head gasket to help lower it some. Still stock head?
Look how far you have come with stock parts! Impressive!
Click to expand...
Yep, same everything else. EQ heads, same top end. Undecided on the cam. Maybe a new regrind. And def considering some thick MLS gaskets. I don't want to kill the budget but still make the bottom end a little more robust. I've been going back and forth for months...stroker? Just forged pistons? Stock pistons with gapped rings....Gen3 Hemi? Lol. This seems to be a decent compromise. I got my new JY '94 5.9 back from the machine shop and it cleaned up perfectly with a hone and crank polish. Just need to pull the trigger on some parts and start assembly.
 
subcom said:
I was considering the Icon 742s which
Click to expand...
I think this is what I have. I will check the paperwork when I get back home later. Budget always come into play for most of us.
I’m happy with the Hughes custom turbo grind I have. Sounds awesome and just plain works.
 
Just to close out this thread, I got the Wisecos and Scat I beams from KMJ performance. $405.00 for pistons with rings and pins. I calc'd the Bob weight and they come in a little lighter than the factory stuff, so hopefully my machine shop will just have to remove a little weight to balance it all.
IMG_20190813_213810257.jpg
IMG_20190813_213910870.jpg
IMG_20190813_213920074.jpg
 
Looking good man, cant wait to see it back up and running. I had oregon regrind a stock cam for my turbo setup, it was like $180 with shipping both ways. Will be assembling short block as soon as i get the call to pick it up from the machine shop.
 
Is that 524 written on the piston showing the weight in grams without the pin? How much does one pin weigh?
 
Bobzilla said:
Is that 524 written on the piston showing the weight in grams without the pin? How much does one pin weigh?
Click to expand...
In my research notes I show the piston at 524 and the pin at 131. I should get final numbers back from my machinist when he's done with the balancing.
Factory 5.9 Magnum piston/pins are 469/135 from what I've read.
 
turboking15 said:
Looking good man, cant wait to see it back up and running. I had oregon regrind a stock cam for my turbo setup, it was like $180 with shipping both ways. Will be assembling short block as soon as i get the call to pick it up from the machine shop.
Click to expand...
I wrote Ken at Oregon and he gave me these three recommendations and said #1990r would be best with my converter.
------
#1634r

224/218 @ .050”, 176/270 adv, .536”/.528” lift, 115 sep

#1990r

236/230 @ .050”, 282/276 adv, .510”/.510” lift, 115 lobe sep

#2058r

236/230 @ .050”, 282/276 adc, .544”/.536” lift, 115 sep
 
I asked ken for his profile list and specd out my own cam.

Heres what i had ground.
234/237 .600/.601 114+4 lsa 110 icl 118 ecl
 
turboking15 said:
I asked ken for his profile list and specd out my own cam.

Heres what i had ground.
234/237 .600/.601 114+4 lsa 110 icl 118 ecl
Click to expand...
That would be too much lift for my setup. I'm going to go with that 1990r. It's actually pretty close to my current #1357 but with more lobe separation. I'll update my other thread once I start putting this thing back together.
 
You must log in or register to reply here.
-

Back
Top