Stroking a LSX engine

[not2melo]

So Manny what is a good name for stoker kits or parts to make a kit?
I have seen some have a 1 pc rear seal and some have a 2 pc?
Also seen Callies and Diamond components mentioned quit a bit.

[Nasty98]

Originally Posted by not2melo

So Manny what is a good name for stoker kits or parts to make a kit?
I have seen some have a 1 pc rear seal and some have a 2 pc?
Also seen Callies and Diamond components mentioned quit a bit.

I like the K1 Carrillo .

LINK Flatlander Racing - K1 Performance Crank Kits

I get them through John .

Thx
Manny@E.C.P

[not2melo]

Thanks, so many numbers, which version would be suitable for my car?

[Riley P]

Originally Posted by Nasty98

Hi Greg, if you are going to stroke your LS1 to 383 then the price is not bad at all at $1700 for the rotating assembly . With your current set up you would be in the 500RWHP + club

To do a 402 you would be in the 7g range for a complete set-up plus heads /intake and so on .

I think that if you really want to do the final step in your build, Let's look at doing you a 383 stroker . I will give you a call tomorrow and we can talk

Thx
Manny

Lots of questions... just because:

Why would it cost so much more to go up to a 402? Is there a lot more machining that needs to be done to the block?

Does the extra 37 c.i. from stroking out the LS-1 to a 383 really make that much of a difference? I assume it's not just the cubic inches, but from the larger crank radius (or longer moment arm that the crank allows). How much hp is that worth, or do you see the increase more in the torque output? Would a 402 really take it to another level?

At what point should you just buy a crate motor?

[Nasty98]

Originally Posted by not2melo

Thanks, so many numbers, which version would be suitable for my car?

Phone call in progress !

Thx
Manny

[Nasty98]

Originally Posted by Riley P

Lots of questions... just because:

Why would it cost so much more to go up to a 402? Is there a lot more machining that needs to be done to the block?

Does the extra 37 c.i. from stroking out the LS-1 to a 383 really make that much of a difference? I assume it's not just the cubic inches, but from the larger crank radius (or longer moment arm that the crank allows). How much hp is that worth, or do you see the increase more in the torque output? Would a 402 really take it to another level?

At what point should you just buy a crate motor?

You are limited with the 347 , even as a 383 stroker . The costs are all due to the parts . Each level you go up the more expensive it is . There are differrent c.i combination's as well as quality of componnets for each . Stroking a 347 with a forged bottem end will net you around 30 hp +, and as we all know, more displacement = more power. Some are satisfied with a 383 and some want more . Horsepower when we get to this level is expensive . 1 hp can cost as much $1000.00 . It is really up to you as to what power level you want to achive, and how much you want to spend . You also have to remember that you are also building a much stronger motor as well as more powerfull powerplant . A crate engine is a good way to go, becuase everything has been designed to work as a package . This is where a good engine builder comes in , and one of the reasons I use John's engines .

Thx
Manny@E.C.P

[HLN A55]

well.. if my new package doesn't make me say OMFG when I hit the gas... I'm going to be in serious serious trouble LOL

Go Greg Go!! It'll be one of (if not THE) meanest C5's on here!!! Sorry Manny... LOL I still love your car.

[Nasty98]

Originally Posted by HLN A55

well.. if my new package doesn't make me say OMFG when I hit the gas... I'm going to be in serious serious trouble LOL

Go Greg Go!! It'll be one of (if not THE) meanest C5's on here!!! Sorry Manny... LOL I still love your car.

The problem is not that at all . You will love your new found power as I , and many others did...................but like all fast cars you get use to the power and after while it no longer feels as quick . Now I'm not saying that this the same for everyone , or that you should keep getting more power mods, but rather that we all have our own ideas and goals as to what we want our cars to do . I personally believe that anything after 650RWHP is almost redundent , becuase planting all the power is what is hardest.......that and our wallets

Thx
Manny@E.C.P

[HLN A55]

Originally Posted by Nasty98

The problem is not that at all . You will love your new found power as I , and many others did...................but like all fast cars you use to the power and after while it no longer feels as quick . Now I'm not saying that this the same for everyone , or that you should keep getting more power mods, but rather that we all have our own ideas and goals as to what we want our cars to do . I personally believe that anything after 650RWHP is almost redundent , becuase planting all the power is what is hardest.......that and our wallets

Thx
Manny@E.C.P

You're scaring me!!! I like it!!

[not2melo]

Originally Posted by HLN A55

well.. if my new package doesn't make me say OMFG when I hit the gas... I'm going to be in serious serious trouble LOL

Go Greg Go!! It'll be one of (if not THE) meanest C5's on here!!! Sorry Manny... LOL I still love your car.

Thanks buddy, I am still doing lots of reading on the pros and the cons.

Either way its very interesting and Manny & John are just down the Hwy from me so we can make it happen very fast if I decide
to go that way in the fall or over the winter time.

I think the 383 would be the cheapest option as you are just adding a forged crank with a 4" travel for added cylinder
depth which means more cubes. I dont think you can go deeper then the 4" or the bottom piston seal will pop right
out the bottom of the sleeved cylinder.

If you want to go 402 or 427 then you need to have the engine re-sleeved for the addition of larger sized pistions.
I have been reading about re-sleeving the block, here is some tech info in a artical about re-sleeving a LS1 to a 427, very radical.



















There are a few good shops out there that can do this, maybe even John's I don't know?

But then we are talking some serious money for the work that needs to be done if you go more then 383, even though
the LS1 block can hold it, at what point is it just cheaper to drop in a already modified 402 LS2?

I was trying to figure out what was the next best bang for the buck to get some more HP out of the car without
adding a FI option to the picture as that would put me out around $7-$8k.

I am going to keep on reading and see what else I can find out.