my 3500 hybrid formula

[3400-95-Modified]

hey guys, dont get me wrong guys, people have to get paid for doing work, espesially good quality work. I'm just saying in comparison to other headers like i had said. but none the less in the consideration part, the headers arent that much more compaired to the cheap paccer set

Yet you made a comparison to a market that's much larger than headers for a 3400... resulting in people spending the money to have them made by a machine and not by hand... Get the point? Pacesetter headers are cheap because there are MULTIPLE connection points just asking to start leaking.

[IsaacHayes]

The MC throttle cable linkage probably will directly bolt onto the LX5 TB. I know on my car I had to rig the cruise as the LX5 uses the new style attachment. So that might work in your favour.

[3400-95-Modified]

I love the TCE... No rigging necessary

[bob442]

Anyone know the silicon content of the forged pistons? i'm reading into as much detail as i can about every part i put into the motor, and my head is starting to throb with glorious information.

I'm getting into to much detail, and possibly over my head. Forged pistons are better for strength, heat transfer, and lower combustion chamber tempatures (Thermal efficiency is better), but have a lower silicon content which can result in a higher expansion rate leading to wearing the rings(not ideal for street driving)

To run a heavier cam than stock i will need to increase my CR, as i'm reading:
with a more wilder cam, the intake valve is still slightly open on BDC, and will remain like that till near 50 or 60* towards TDC on some cams on the compression stroke. now you have to figure out your dynamic compression ratio and then calculate you CR that you will want to have for what cam. So theres alot more to understand than i origianly thought. this might take a while to figure out exactly what will be neer perfect. especially if i can't change my CR on my pistons to much. (E.G planning my heads changing head gaskets)

Am i understanding this correctly?

[IsaacHayes]

I love the stock look. and the fact it has 2 extra vacuum sources which I actually use. And the fresh air port I use for the rear valve cover breather just like stock on the LX5 and LS1. That way you don't have to drill a hole in your CAI.

[bob442]

So I found a 3500 motor for a great price, Low Km, I'm not meaning to change my mind intentionally, so far i've only put a Down payment on the motor, so the decision isn't completly written in stone. Talking to Ben, I wont be able to make over 240 crank Hp on a 3500 motor, and I was hoping to make atleast 250-60. If I was able to bump up the compression a bit I could make those numbers, but aftermarket pistons are not avalible yet for the 3500. I thought maybe I could use thinner head gaskets, but I would end up bringing the Valves to close to the pistons. The 3.6 DOHC pistons are the only other option (not sure what has to be done to the bore) would bring the compression to 12.6, which is way to high for a street DD car. Is it possible to machine the top of the pistons down?

*If that is not an option at all, would anyone reccomend just staying with my 3400 block and 3500 top end as I can change the compression to what ever I want with forged pistons? if that is the case, I'm fronted with another concern that no one has an answer yet. With forged pistons, the tollerances are alot smaller than with cast pistons.
From what I read "forged pistons are great for engine building, but aren't reccomended for street aplications, as it will have an increased wear on rings" and i dont plan on rebuilding my engine for a long while after it is completed. Are the forged pistons from the WOT store Ok for this application? educated responce? i understand theres alot to do with silicon content and what metal they are made of, but nothing clarifies if they are ideal for street applications.

[SappySE107]

Dave has proven 275whp with a 3500 and a manual, but that is with long tube equal length headers. I think you asked if you could get 250whp with an automatic and S&S modified header and I said not without boost or raising compression. You can run a .051" head gasket thickness to raise compression. The piston to valve contact is only an issue with stretched timing chains and aftermarket cam timing (but its the chains fault for the issue, not the cam). There are forged pistons available to change compression or you can change the deck height. They are a different alloy than the forged pistons that expanded more and were meant for non daily use.

http://wot-tech.com/shop/all/forged-3400-pistons/prod_186.html

I just need to send a 3500 piston to Diamond, and these can be made for the 3500 as well.