What kind of drive ability do you get from a cam like that on the street on a high CR set up?

 

IMO a cam like mine should be decent on the street, the lift is very high if you would use it mostly for street... Idle should be very good the cam is also advanced 4*.
Hopping to lay down 630-650rwhp through a T56 and S60.

 

I would really expect more than 650 RWHP, given the intake and cam being used, but 650 RWHP would be sweet for a 440ci that is streetable.

Whats the cr?

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actually the ls7 sleeve is 5.9", longer than most any block, even the lsx. they lend themselves to big strokes.

i run a 4.135 x 4.100 on my LME 440 with no problems. great motor.

 

Wow, I thought it was shorter. So its LONGER than the new Darton sleeves designed by RED?

Is there some kind of bung at the end of the sleeves or something that no other sleeve has?

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12:1 on 93. I would be extreamly suprised if i make more than 650rwhp...

 

Gordon... in your sig the car u were racing rude staged the crap outa u lol

 

Yep LS7 block has long cylinders about 5.875 ish considering the large chamfer on them so very nice for longer stroke.

 

So will the pistons with a 4.125 stroke in a stock LS7 block be perfectly supported, as in just as good as 4.1" or 4" stroke support?

How far can the stock sleeves be bored for an N/A application and still have plenty of strength?
((can't find this anywhere with the search))

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So what kind of dollars are we talking about for a re-sleeved LS2??

 

If you supply the block, it'll cost around $2400 to have it resleeved, IIRC.

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So what's better, a re-sleeved LS2 or a stock sleeved LS7?

 

I think the resleeved LS2 is a good bit stronger because of the new Darton sleeves. I think the LS7 stock sleeves are on the weaker side if going spray or FI.

Also, there's something abotu the main caps being stronger on the LS2. Someone will confirm or correct that I'm sure.

 

Yes the LS7 is a good deal as far as cylinder length and 4.125 can work fine in them.

The original LS7s have weaker sleeves than a ductile iron aftermarket sleeve like a DARTON or ERL or LA Sleeve etc. and I wouldn't go crazy with them. We have done 4.130-4.140 and had no issues though on them.

 

Erik, can you do a partial block fill on an LS7 and if so, does it help?

 

Our ERL "Dry Sleeve" sleeving is much cheeper than that. Our Dry Sleeve would only run you 1550.00 to get your LS2 sleeved. This price is with you providing the block and we do have options that you can go with as well. We can add doweled billet main caps, lifter bushings, etc......

 

I haven't ever done that as I do not know what effects really doing that would have on an aluminum block.

 

Erik, I talked to a guy today who filled two with about 1 1/2" of hardblock. He said that word was the lower part of the sleeves is the weakest and this should stiffen it up a good bit, but you can't do a true fill like the old stuff. I know that Brodix offers a partial fill on their big block aluminum piece, so there must be either a reason or a demand for it...or both. I'm a ways away from my build, I'm gonna try to keep track of these and see how they do.

 

The highest cylinder pressure is at TDC so I am not sure how much that would help and I would be worried about the expansion rates between the block and the fill material myself.

On old non siamesed stuff they would do it for drag racing but I still don't know how much it is needed if at all on one of these blocks?

 

He said prior history with this combo indicated weakness in the lower part of the cylinder, possibly related to side loading or something along those lines.
I'm not planning to go over 1000hp with mine and that would be with a couple of stages, I think I'll roll the dice with this one