Switched to a L96 408 stroker

[Turbolq4]

I guess it comes to preference cause it's too many stroker builds and crate engines on the market for strikers to have a reliability issue.

The amount of builds available has zero to do with reliability. If you choose to ignore available information on the engines in question then thats ok. It's a toy and I can appreciate that.

 

[Turbolq4]

I don't believe piston speed is the issue. The increased rod to bore angle of a stroker is what accelerates wear IMHO.

But with the idea of it being a weekend warrior application, I would not be concerned about anything other than not running multiport fuel injection. The nitrous will cause more wear than the any stroker concerns. Nitrous and longevity.......not synonymous lol.


Confucious Nailhead say : the difference between nitrous and a turbo, you'll whip me to the 330' mark, and then I'll drive by like you have an anchor out back 🙂🙂

All kidding aside - to each his own - enjoy.

Piston speed is just one issue but I agree it's not the prime killer of this exact engine setup. Most theories come back to excessive piston movement due to being pulled out of the bore too far, compounded by your mentioned piston to bore angle. I was unaware of a change in bore length between gen3 and gen4 but my ignorance wouldn't be a surprise. Always something to learn.


Upon further research I have discovered that the LS7 has longer cylinders. So either you are using an aftermarket block that mimicks this or paying through the nose for an unobtanium LS7 block and then reducing its displacement from 427 to 408 for unknown reasons which is doubtful.

 

[Texas82GP]

Piston speed is just one issue but I agree it's not the prime killer of this exact engine setup. Most theories come back to excessive piston movement due to being pulled out of the bore too far, compounded by your mentioned piston to bore angle. I was unaware of a change in bore length between gen3 and gen4 but my ignorance wouldn't be a surprise. Always something to learn.


Upon further research I have discovered that the LS7 has longer cylinders. So either you are using an aftermarket block that mimicks this or paying through the nose for an unobtanium LS7 block and then reducing its displacement from 427 to 408 for unknown reasons which is doubtful.

I couldn't find anything to say the Gen IV iron blocks (LY6, L96, etc.) had longer cylinders than their Gen III brethren (LQ4, LQ9, etc.). What I'd really like to hear about is a 408 with over 100k miles on it and how it's doing. I haven't come across that yet.

 

[Texas82GP]

Go to 8:40 in the video, or watch the whole thing. What I read and what 64nailhead had to say are both mentioned.

 

[Northernregal]

Do it! We need real world stroker results!!!

 

[motorheadmike]

I couldn't find anything to say the Gen IV iron blocks (LY6, L96, etc.) had longer cylinders than their Gen III brethren (LQ4, LQ9, etc.). What I'd really like to hear about is a 408 with over 100k miles on it and how it's doing. I haven't come across that yet.

I have a stock 140K mile 6.0L that is daily driven with a blower on it; and there are lots of factory built high mileage blown 6.2Ls out there in LSA powered cars. And then there is this: https://sites.google.com/site/sloppywiki/sloppy-builds/infinity-g48

A 400+ cube small block is such a cute novelty... one that is going to be financially crippling with parts and machine work/labour. It is like saying: I have a huge penis that never gets fully hard... but, I have a huge penis.

 

[LsxBuickRegal1982]

I don't believe piston speed is the issue. The increased rod to bore angle of a stroker is what accelerates wear IMHO.

But with the idea of it being a weekend warrior application, I would not be concerned about anything other than not running multiport fuel injection. The nitrous will cause more wear than the any stroker concerns. Nitrous and longevity.......not synonymous lol.


Confucious Nailhead say : the difference between nitrous and a turbo, you'll whip me to the 330' mark, and then I'll drive by like you have an anchor out back 🙂🙂

All kidding aside - to each his own - enjoy.

Thanks I understand the stress that nitrous puts on a block but I just wanted to say I built a nitrous motor

 

[LsxBuickRegal1982]

Go to 8:40 in the video, or watch the whole thing. What I read and what 64nailhead had to say are both mentioned.

Thanks that video was very informative and with all that said im still going to continue my build I have all the machine work being done by automotive machine shop out of Fraser, MI they also offered me a nice warranty.

 

[motorheadmike]

they also offered me a nice warranty.

 

[Texas82GP]

I have a stock 140K mile 6.0L that is daily driven with a blower on it; and there are lots of factory built high mileage blown 6.2Ls out there in LSA powered cars. And then there is this: https://sites.google.com/site/sloppywiki/sloppy-builds/infinity-g48

A 400+ cube small block is such a cute novelty... one that is going to be financially crippling with parts and machine work/labour. It is like saying: I have a huge penis that never gets fully hard... but, I have a huge penis.

Please change your handle to Mr. Forced Induction.