Dart 230's from LME
Dart 230's from LME Just wanted to see if any one was running these. And what kind of setup you have.
Im leaning on these Dart 230's with the full port. Also the lt4 intake as well.
Let me know what kind of #'s you guy's are putting up and how you like them.
Im leaning on these Dart 230's with the full port. Also the lt4 intake as well.
Let me know what kind of #'s you guy's are putting up and how you like them.
your having them converted to reverse flow cooling right? if so thats still fairly new. most of the people on this board have not gone "exotic" like that. there are some here that are familar with the SBC2 setup and i am sure they can help you. just have to be patient for them to come around.
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Joined: May 2004
Posts: 549
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From: St. Peters, MO
Originally Posted by 96silverram
These are built specifically for the LT1 (reverse flow from the factory) ? If so, LT1 guys are gonna go nutz on that head & flow. 
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Verdad Gallardo I was just saying im getting my LT4 intake ported to match these heads also from LME. cost = $400
Heads Bare = $850 or so. then for reverse cool and porting will be $2250
Price quote from Brian at LME.
But the Bare heads im getting through a local dealer.
Prices are just the port job and reverse cooling. and also valves and whatnot.
Supposedly they flow 308cfm out of the box. and with the port 330-340cfm.
Heads Bare = $850 or so. then for reverse cool and porting will be $2250
Price quote from Brian at LME.
But the Bare heads im getting through a local dealer.
Prices are just the port job and reverse cooling. and also valves and whatnot.
Supposedly they flow 308cfm out of the box. and with the port 330-340cfm.
Originally Posted by travie319
wiat a minute... i got comfused cause of the lt4 intake remark...also how much are these heads from LME
I am not trying to burst your bubble in anyway here, i doubt those heads flow 308 out of the box. I have 2 sets of Dart heads, the first was a set of Iron Eagles....they weren't that great....and more recently when building a 383...I went with some Dart Pro 1 215's. I didn't expect much out of the box from them, but they did claim to flow almost 280. Before they were ported they were flowed for some piece of mind....they flowed 260 or so at .700" lift. They did leave alot of room for improvement. I still think those heads are too big, I saw your sig...they are going on a 396....a 11.5:1, .650 lift 396. Thats not too radical, so I stand by the opinion that these heads are 2 big. What are your HP goals....what are your plans for the car...all necessary parts of choosing the right stuff for the car.
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Joined: May 2004
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From: St. Peters, MO
Ok...while you have a decent post Bigkap....these are not too much head, not even close. On a stroked motor with a decent sized bore (396) you need to flow 300+ even to get the thing to keep making power past 6200 or so. Also the flow number is just that, a number. It's more about port velocity. With a solid roller cam with a lot of duration heads that flow this well are necessary. If you think I'm pulling this out of my ***, go look at all the LS1 cars with ported LS6 heads flowing 310+ on stock bottom end cars with small (by comparison here) cams. 
Your right i might be shooting alittle high on the flow #'s but who knows. According to dart's website they do flow 308 out of the box.
Last edited by asudecat; Aug 17, 2005 at 04:17 PM.
I am not saying that the head flow is too much in any way. Contrary to this, what I meant was that the runners are Too big. It would take a whole lot of engine to warrant the use of these Ported Dart 230's due to runner size. Port velocity has to with Minimum cross section of a runner, RPM range, etc. etc. Now granted Cubic inches do eat up port volume, but I still don't think a relatively mild 396 w/ 11.5:1 and a solid roller that only makes power to 7200( as far as the PCM can go)...will need a 230+ runner volume.
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Joined: May 2004
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From: St. Peters, MO
Originally Posted by BigKap94z
I am not saying that the head flow is too much in any way. Contrary to this, what I meant was that the runners are Too big. It would take a whole lot of engine to warrant the use of these Ported Dart 230's due to runner size. Port velocity has to with Minimum cross section of a runner, RPM range, etc. etc. Now granted Cubic inches do eat up port volume, but I still don't think a relatively mild 396 w/ 11.5:1 and a solid roller that only makes power to 7200( as far as the PCM can go)...will need a 230+ runner volume.
I am building a 383 LT1 with a T76 and I am using Lloyd Elliott ported LT4 AFR210's. I am also helping my boss with his 67 camaro 383 with a T74 turbo kit. He bought the Dart Pro 1 230cc heads as cast. He sent them to Lloyd Elliott to port, and here is the comparison between my heads and his...
.............Lloyd's AFR 210................Lloyd's Pro 1's
............Intake.....Exhaust..............Intake .....Exhaust
0.200......143........103....................142.. .......105
0.300......204........141....................199.. .......145
0.400......247........173....................248.. .......175
0.500......281........198....................281.. .......202
0.600......308........219....................302.. .......217
0.700......311........227....................317.. .......229
Just food for thought....we also paid ~ the same money for the heads, porting andn valvetrain.
.............Lloyd's AFR 210................Lloyd's Pro 1's
............Intake.....Exhaust..............Intake .....Exhaust
0.200......143........103....................142.. .......105
0.300......204........141....................199.. .......145
0.400......247........173....................248.. .......175
0.500......281........198....................281.. .......202
0.600......308........219....................302.. .......217
0.700......311........227....................317.. .......229
Just food for thought....we also paid ~ the same money for the heads, porting andn valvetrain.
Last edited by RealQuick; Jul 11, 2005 at 02:27 PM.