402ci almost

[Polo-1]

UPS left me a box of goody's today:cool:

top coating
http://i7.photobucket.com/albums/y292/kpie/pistons011-1.jpg

side coating too
http://i7.photobucket.com/albums/y292/kpie/pistons012.jpg

368 stock rod to 402 6" Crower rod
http://i7.photobucket.com/albums/y292/kpie/pistons003.jpg

You can see where the SBC piston (368) was dropping out of the liner a little too far for my taste. That the funny wear line in the skirt of the 368 piston.

[Jagdpanzer]

Who made the pistons and rods?

[Jeffvette]

Who made the pistons and rods?


JE & I believe Oliver.

[Polo-1]

Both the 368 and the 402 are from JE The 368 use a SBC (L98)base piston.
Rods are Crower Maxi-Lite RBT 6" long

[4DSZR1]

Good looking pistons... what's the advantage of the coating? Cant be to reduce carbon build-up.... none of us ever let that happen ;)

[jonszr1]

if its swain tec .its a thermal bairier coating . that keeps the heat in the combustion chamber. the pistons run cooler there is also less buildup and chance of hot spots (carbon buildup) that cause detenation . if one does this to the combustion chamber it makes for a very liveable 12/1 compression .

[Nick]

Nice looking gear, Kevin! :worship:

[Zr1 Destroyer]

Holy thick ring lands batman!:-D Doesn't JE make a gas ported piston yet?

[Hammer]

Very nice Kevin. 402 on NO2, what's that gonna be, about 550 or so HP? WOW.

[Polo-1]

Holy thick ring lands batman!:-D Doesn't JE make a gas ported piston yet?

Yes, 1/16 1/16 3/16 and Yes it's going to have a small hit of N2O.

G.P. Yes both vert and lateral. Mine no, as you can see:wink:

I did do the double pin oilers, pin fitting, accumulator groove, spin boss, window milling. Coatings thermal barrier top and low friction on the side.

[Polo-1]

Very nice Kevin. 402 on NO2, what's that gonna be, about 550 or so HP? WOW.

Well, about a buck fifty past Ted's 415:mrgreen:

[GOLDCYLON]

Well, about a buck fifty past Ted's 415:mrgreen:


Reminds me of the line from Star War Episode I , "There's always a bigger fish"

[Polo-1]

Reminds me of the line from Star War Episode I , "There's always a bigger fish"

That's the Truth

[jonszr1]

just trying to learn, does the shorter skirt on the new piston create any side loading problems with the stroker rod?

[Hammer]

Well, about a buck fifty past Ted's 415:mrgreen:

Dude, I'm gonna need a ride in your car. I'll wear Depends, LOL. :worship:

[Polo-1]

You and me both....

This is my first LT5 build. Not my first motor build.

Thing that I seen in a 368 built motor from one the pro's. They used a long skirt piston in a motor that has a short sleeve. The 368 piston was dropping out the bottom the the sleeve. This to my and my builds is a very bad thing. The abuse the the piston skirt has takin on is visible by the eye, let alone be the mic.

Now my "short skirt " to keep the piston in the liner is only 3/16 shorter then stock. The 368 (L98) piston is 11/32 long then stock.

Side loading. Well I can not have a piston falling out of the liner. My piston is still a little longer then a LS motor piston. :dontknow:

[jonszr1]

thankyou for the insight . i guess the picture makes it look shorter than it is. your point about so much of the skirt coming out of the bottem of the liner seems very valid . it sure seems like you did a first cabin job on the pistons with the coatings . i really liked them in a stroker small blk ford i did a couple of years ago . are you going to coat the combustion chambers in the head also ? the 402 that you are building i think could be the best of the stroker breed . best of luck to you on this . i sure wish i could do one .

[Demps]

Well, about a buck fifty past Ted's 415:mrgreen:
Funny. I love them all!!!

Fast cars are addictive. I have come to the conclusion that the more you have...the more you want. I have the honor of my daily job taking me faster than any of my rides, but they all are awesome. Kevin, congrats on the car. Please let me know when you're finished. Karo and I may come out to visit. I need a ride in a fast car.
Ted

[Polo-1]

I knew that would get you:sign10:=D>

You two have a place in the Northwest anytime:wave:

[Zr1 Destroyer]

Yes, 1/16 1/16 3/16 and Yes it's going to have a small hit of N2O.

G.P. Yes both vert and lateral. Mine no, as you can see:wink:

I did do the double pin oilers, pin fitting, accumulator groove, spin boss, window milling. Coatings thermal barrier top and low friction on the side.Cool....have fun with the spray...these cars rock with a nice baby hit!!!

I went with the c/a .043 for top and second ring...3mm for oil ring on the ol gas ported BME's.......no spray for me!

I also did some thin wall .090 caz coated wrist pins on some Titanium oliver rods.......my little cookie cutter stroker revs fast, but went light weight since it'll never see n20.:-D

[Polo-1]

Oliver Ty rods:worship:

Not in my budget. When I was price looking "ready to buy" they had gone up. $7-8k last I looked.

[flyin ryan]

I went with the c/a .043 for top and second ring...3mm for oil ring on the ol gas ported BME'si just received a set of BME's two days ago. uses a .0325" top & 2nd. Total Seal says won't be a problem, will work good. can't wait to see. they are light, though, i can tell you that much. 'whole' ring package weights only 23.3 grams....that's light boys & girls.

[flyin ryan]

Oliver Ty rods:worship:

Not in my budget. When I was price looking "ready to buy" they had gone up. $7-8k last I looked.Ti has gone from expensive to insane the last year & ½ or so.

[jonszr1]

7000 for just rods holy cow if it blew up man id just die .

[Polo-1]

When I called the help line, they said as long as it's under 20psi boost and under 1100hp good to go. After that power level (boosted) they said to go back to steel.

[tpepmeie]

Curious how much these pistons weigh, without the pins. Is it a 2.95" long pin? Most JE's like that are.

Todd

[Polo-1]

Finished at 383g
I want to go with a Ty pin, but was talked out of it with the use of N20. Even the tapered wall:( So short pin. 2.750 and standard SBC .927 dia. came in at 126g Still lighter then stocker.

[flyin ryan]

Finished at 383g
I want to go with a Ty pin, but was talked out of it with the use of N20. Even the tapered wall:( So short pin. 2.750 and standard SBC .927 dia. came in at 126g Still lighter then stocker.Not sure who or why they talked you out of it...? for comparison for you, i looked up a couple builds that i used Titanium pins, one was: .927" dia. X 2.50" O.A.L=86gms.
another was: .930" dia. X 2.30"O.A.L.=64GMS.
i'm a fan of Ti pins, for a bunch of reasons. not too late, Kevin...

[Locobob]

I seriously need to win the powerball jackpot, all this talk of titanium is giving me wood :mrgreen:

Have you seen Jeff's titanium top end bolt samples Kev? Purty cool!

[Polo-1]

Not sure who or why they talked you out of it...? for comparison for you, i looked up a couple builds that i used Titanium pins, one was: .927" dia. X 2.50" O.A.L=86gms.
another was: .930" dia. X 2.30"O.A.L.=64GMS.
i'm a fan of Ti pins, for a bunch of reasons. not too late, Kevin...

JE did. I told them 250-275 shot. They said to stay with steel.

I wanted to save some g's with Ti pins.

[flyin ryan]

JE did. I told them 250-275 shot. They said to stay with steel.

I wanted to save some g's with Ti pins.not a secret in the trade that JE's 'waayy' conservative. should have talked to the pin guys instead of the piston guys. i can give you a number & contact if you'd still like to get a set. you won't be disappointed. that extra weight might not seem like much but when it's trying to change direction at 7000+ RPM, it don't like it. build em' light & turn em' tight :mrgreen:. how much power are you planning on making total...with the sauce? 700ish? i've run Ti pins up to 10,250ish RPM & 960 HP on a small block, no problem :dontknow:. just trying to look out for ya buddy :hello:

[rkreigh]

TI rods certainly are nice. even way back in the day they were over 4k in my LSV build. but for nitrous, I'm not sure I'd go that way. nitrous builds cyl pressure very quickly and often leads to detonation that the knock sensor can't react quickly enough. TI is super hard and brittle, and can quickly pound the bearings out. the pro mod monster motor guys all abandoned TI rods and went back to steel and alum rods to be more forgiving and cushion the pounding a bit more

as with all motors, you want to avoid detonation as it will break the strongest parts, but TI is less forgiving when it's encountered as it transfers the shock loads to the bottom end more violently

nice build! in another 200k when I wear out my LSV, I'll be looking at those pistons!!:mrgreen:

[Polo-1]

nitrous builds cyl pressure very quickly and often leads to detonation that the knock sensor can't react quickly enough.


This is pretty much what JE said. They also said unlimited power on Ti pins/rods, as long as no "boost" is added to get there. no turbo/blower/nitrous.

I'm back and forth on the Ti pins.

Engine power hopes. 600-625 then hit it two stage 150 and 100/125. so motor should hit 825-850 on the nitrous.