higgsfbody

iTrader: (1)

has anyone used these heads..there from dart im looking around for a few different companies but always drawn to Dart..what kind of power have you made..any problems..thanks(im also looking to go with the comp 303 cam)

pooogy

I have the 200cc lt1 darts. I only suggest putting forth all the time and effort that goes in to swapping heads if you get them ported. The unported darts are not really much better than stock imo.

higgsfbody

iTrader: (1)

do you think it would be better to just port out the stock heads or is it worth the time and money to get the darts ported?

96capricemgr

iTrader: (1)

Dart is quality products. Can I guess you meant 503 cam??

Long as you understand that if you use as cast aftermarket castings and an off the shelf cam you will likely lose to guys with ported stock heads and customs cams then that is fine. No sarcasm just stating the truth. If you really want aftermarket castings, say because you want to port them later for a stroker or whatever then this can work OK. For now though as cast you will end up with mediocre performance but room to grow.

Edit
You posted a reply as I typed.
For most of us ported stock castings will deliver all we ever want.

With my NA Caprice I have already been warned about needing a rollbar, at a track I drive 150miles EACH way to race at. That is with http://advancedinduction.com/AiProductsLT1.html their 200cc ported stock heads package.

How fast do you want to go?

I8ASaleen

iTrader: (9)

Spend money on porting instead. Call LE and he'll give ya a deal.

higgsfbody

iTrader: (1)

i actually have a 96ss impala..and new to the lt1 game..i want to eventually heads,cam,3500 stall,geared,another intake manifold so i can spray like a 150 shot or supercharge it but thats later down the road...(someone told me the rearends on these cars are weak but i didnt know that for sure)so what do you think would be the best bang for my buck?

96capricemgr

iTrader: (1)

Sounds like you are being lead astray.

The 8.5" in the LT1 b-bodies is stout.
The intake manifold is pretty good too.

Maybe a peak at my photobucket page will convince you I have the recipe you need.
http://s120.photobucket.com/albums/o165/96capriceMGR/
The multiple colors is because I DRIVE it and have made a bad habit of hitting deer.

With Advanced Induction's 190cc package it went 11.9 113mph with a 3400 stall 3.73s.

Haven't gotten the new setup to the track in any real good weather yet, decent weather but not great.

higgsfbody

iTrader: (1)

sweet so thats two less things i have to worry about for now(intake manifold and rearend)i apreciate it man..so just so im sure,,my bad just trying to get some good facts..so what do you think would be best as far as heads,cam?i really would like to eventually run a setup like yours and eventually 11.0's or high 10's is my goal one day so basicly set it up for that?

96capricemgr

iTrader: (1)

Mid 10s NA has been done with an Impala and the same heads I run, honestly though for most guys shooting for low 11s high 10s I would aim to use a little spray to get there.


www.advancedinduction.com for the heads and cam

fex77k

iTrader: (2)

I'm running a ported set of 180 Pro 1's it easily cleared 430+ rwtq and hp. http://i20.photobucket.com/albums/b2...3/PIC-0287.jpg

a modified stock intake. http://i20.photobucket.com/albums/b2...3/DSC03877.jpg

higgsfbody

iTrader: (1)

very nice

higgsfbody

iTrader: (1)

so you guys think i should go with the dart platinum heads then?oh yea any cam recommendations?

fex77k

iTrader: (2)

With my 388 I'm running a cam with around 260+ duration and 560+ lift on both sides. If your going to do much street driving or you are sticking with a 350-355ci engine i wound't suggest anything larger.

higgsfbody

iTrader: (1)

yea i dont plan on stroking it out or anything just a quick somewhat reliable DD

Corey @ Clayton Racing

If you want the Dart heads, give me a call. They are Very strong castings, with plenty of room for porting later, and have a very good chamber.

fex77k

iTrader: (2)

That's why I'm running them.

edit: port ****.

BALLSS

what that 'someone" should/might have meant is the "stock" auburn limited slip unit can have a short life ....the 'rear end" itself is pretty stout. many swap in a eaton or trutrack diff after the auburn dies or during gear swaps since that install requires the LS unit to be removed.

roadtrip120

iTrader: (29)

I have the dart pro 1 lt1 180cc, cnced by BRE

541rwhp 463rwtq

see sig for track times

higgsfbody

iTrader: (1)

sweet so it looks like im going with the dart heads in the longrun thanks everyone for the help im sure i will have a few more questions in the future

BizZzatch350

iTrader: (33)

I had a set done L.M.E, I wasn't happy with the quality of the guide plates that it came with, ended up using GMPP and not the stuff Dart sent me. Here is my take since I actually own a set and spent the money to have them ported. If your going to run them on a stock short block, stick with L.E or A.I ported GM castings, run a custom cam and spend the money you saved on the intake. Dollar for dollar, I don't see the point looking back at if I was I just leaving it with the stock short block. I want to build a stroker, I think these heads are good heads depending on the set up. Out of the box as cast, waste of time, your better off with the GM Casting.

The set I had done, flowed 288/212 at .650 with LME's basic "street/strip" port job, we could have gone farther but for the money wasn't all that worth it for the gains. All in all I have about 2100$ wrapped up in the heads alone. I plan to build a stroker at some point and will reuse these heads. Brady's Z28 is a good example of what the heads can, mine really isn't. For after market heads, they are failry prices, I paid 1400 shipped, and then $700 for the additional port work. When I was doing heads, there was no AFR E. A set of those are right at what I have in my heads, flow numbers aren't every thing. The older AFR stuff always picked up power when the CNC lines were cleaned up by hand. But at that point your what, 2500 in to them? For a stock short block car, not worth it. Max effort stroker, maybe so.

I'm doing a LS1 PCM and going to have it dyno tuned. I don't have any track times, but the car picked up around 100RWHP with the Darts/CC306, a "ported" MTI intake which I think really was just opened up for a 58mm and I know gasket matched. Other wise, doubt any thing extensive at all. I dynoed it bolt ons and it made 260, after it made 360, 390 un corrected, and I also added a 12 bolt so lost some dyno power there, converter unlocked both times, seen guys loose 10-20rwhp. Imagine 10 bolt and locked converter it would 380ish corrected, who knows, dyno racing for comparison sakes. This was all on a mail order tune, with no additional dyno tuning, so I can't imagine the car is dead nuts on. Being a 93, no way in hell thats possible. There is potential in the set up, I just haven't gotten to it. Once I put the six speed in and get it tuned, I'll post up the hero numbers. They aren't bad, but there is no staple set up for every one, so look at it whats best for you, whats the best return on investment far as power gains.