Fast355

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Finally getting around to installing the Dart Iron Eagle 215s (2.06"/1.60"valves, 72 cc chambers(the current 810 swirlies have 76cc chambers)) I have had in my garage. I am off for two weeks! Time to put them on my 350. I will start on thursday morning and should have it running by around 5:00 PM on thursday. It is going to cost me intake/exhaust gaskets as everything else has been sitting in the garage for about a year!

I will be gasket matching my performer RPM intake to the Dart ports. Should be interesting.

Based off of DD2000 and predicted losses though the driveline, it should be at roughly 250 RWHP/370 RWTQ once tuned. According to DD2000, I will be up 100 FWHP @ the 5,600 RPM fuel shut-off!







I am sticking with cast-iron manifolds for now as I have been unable to dig up headers for angle plug heads on a VAN.







In the following pics you can tell that this is not the first in chassis head swap that I have done on this van. This was the old 312 shortly before swapping in the 350.

Fast355

iTrader: (2)

Update-

I have been working on this for about 4 hours now, the driverside head is on and done, the passenger side swirl port head is on the garage floor. The 2nd Iron Eagle is ready to go on. Just time to get out of the heat for a while, eat lunch, take a swim, and then it will be back to work.

mw66nova

iTrader: (13)

man, with some exhaust, cam, c/r, intake...that thing might atcually make some serious hp...but those heads are frickin' huge for the combo you've got going now...it's gonna be a dog under 3000rpm.

Fast355

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I honestly don't think that it will be any doggier than whats on it now. The 810s are not like the 193s, or so I have found out. The opening into the intake bowl is even more restricted, not to mention they have 190ish CFM ports. So with the 810s I have, no valve spring pressure, rototators on both intake and exhaust, no flow, lower compression, and lack of a fast burn chamber. Although they do have excellent swirl. The Darts have good flow, decent swirl, fast burn chambers, good valve springs, no rotators, more compression, and angle plug placement.

PS- Keep in mind that I have a 2,800 stall in it.

I am also working on headers (find me some that will work on a van with angle plug heads and I am all ears), the exhaust is already decent from the cat-back. The port matched performer RPM intake should be fine. The cam is to come, just not in the budget right now.

I wouldn't have picked up the 215s, except that I didn't pay alot for them compared to what they had in them. I could have easily spent 2x as much and gone with the 180s.

Fast355

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Well I got it back togather earlier. Had to switch from center-bolt valve covers to perimeter bolts, because the internal braces hit the springs on the stock centerbolt pieces. Looks better with the perimeter bolt covers on it anyway. Just need to do something about the blue valve covers and intake with the orange heads.

All I can say is WOW!

After raising the fuel pressure to 36 PSI with my 68# injectors, reseting the BPW, a little wideband VE learn in the driveway, and some part-throttle pulls around town, I found that I was pig rich all the way to 5,000+ @ part throttle. Being pig rich, I knew it wouldn't hurt to go ahead and get on it. I wasn't prepared for what would happen next. From a 25 mph roll, it started to get sideways. I actually had to get out of it to keep from going sideways! After a little tweaking, it was idling smoothly @ 700 RPM with 21 in/hg of vacuum showing. Throttle response is quick.

BTW, It still has all kinds of low-end torque. From idle-5,500 rpm it pulls harder than the 2500 Express shop van we have at work. It has a 300 net HP 6.0 in it. I wouldn't hesitate to say that it is making a good 335-350 FWHP @ 5,000 rpm.

On a side note, the tone of the exhaust is SO much DEEPER. At idle it sounds like a big block (wonder if those huge valves has something to do with it).

I need to get some pictures up.

va454ss

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Fast355

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Its not pretty, but it is functional. I will have to clean it up at a later date.

On a side note, I am going to the autoparts store tommorrow to pick up some shorty header plugs. That should give me the clearance I need to run the heat sheilds to keep from cooking the wires that I am about the make up for it. I have a set of Accel 300+ 8.8 MM racing wires that I need to put togather and put on to replace the Bosch POSs that are on it.

Casey Butt

On an unrelated note...

How much oil have you spilled on the carpet in that van?

Fast355

iTrader: (2)

Its actually still got the carpet that was installed in 1983 by the conversion company. I have new carpet for it, but unless my line of work changes, it is going to stay. I work in a shop and it can get to be a nasty place. You step in it and track it into your personal car when you go home, go to lunch, etc. Over the past few years, my work boots have worn a hole through the driverside floor mat then through the carpet.

BTW, that is mainly anti-freeze on the passenger side floor from the heater core bursting about 3 yrs ago.

Casey Butt

Man, I think the temptation to wipe my hands in the carpet would get the best of me. I think I inherited that tendency.

Fast355

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Just some graphs to show how-much low-end cruising torque that I still have, despite the 215 CC intake ports and huge 2.06" intake valves.

mw66nova

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hehe, well you proved me wrong! my mom's got a safari with the 4.3 vortec in it and boy does that thing suck to work on!

Street Lethal

iTrader: (16)

I really wish you were here in New Jersey, as I have an 86' LG4 Sport Coupe that is just begging to be restored (runs fine though). Hell, I'd honestly "give" you the freaking thing, as it'd would really be nice to someone like you turn her life around (I have no time). With 21 in/hg of vacuum @ 700-RPM, me thinks it's time for a cam swap...

Damon

How did you use the same intake? Centerbolt valve cover heads have the 2 center intake bolts stood up at a different angle than the earlier bolt pattern used by the Darts, don't they?

Fast355

iTrader: (2)

The same way that everyone else uses an old style intake on TBI heads. I slotted the 4 middle bolt holes and used washers as a shim. The intake the still bolted right up to the Darts. Dart heads will accept either type of valve cover, although the centerbolts would not clear the springs?
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LOL, this 350 would make that 86 FAST!!!

Fast355

iTrader: (2)

YouTube - 350 TBI

mw66nova

iTrader: (13)

so who's giving away cars? specifically a sportcoupe, lol!

Street Lethal

iTrader: (16)

I know, but I might not have a choice. I'm not going to literally "give" it away, but I'll be letting it go, along with a 350, and a lot of other parts along with it, for very very cheap (she's just sitting in the driveway, and deserves a better life, plus my wife is getting sick of looking at her). I have two other cars aside from the 86'-SC... the 98' Trans-Am is my daily driver, and the 86'-Iroc, in which I'll probably be buried in (been through a lot with that freaking car lol....).

mw66nova

iTrader: (13)

pm me with a price and a link to pics...

oldred95

I tried to find those heads over at summit racing and this is as close as I can find. Dart Iron Eagle Platinum Cylinder Heads: DRT-10521122P - summitracing.com

Says 64 CC combustion chambers and 2.05 intake valves. I'm assuming this isn't the exact same head you are using right? What about intake bolt patterns. WIll these heads still accept a stock TBI intake, or holley or edelbrock intake? Do they have EGR provisions? One last question, how well do you think such heads would allow a 396 stroker to breathe?

mw66nova

iTrader: (13)

these heads would flow plenty for a 396...most of them came with the old style intake bolt pattern (two inside bolts go in 90* instead of 72* of the later style).

from what i'm to understand, the exhaust side on them need to be cleaned up a bit to get optimal flow...

oldred95

Do you know where I can get a flow profile for those heads so I can get a fairly decent HP and TQ estimate with desktop dyno?

mw66nova

iTrader: (13)

google my friend.

Fast355

iTrader: (2)

A picture is worth a thousand words here. I picked up a dead miss. After checking the basics, I dug in. The push rod snapped when an exhaust valve got hot and the valve to guide clearance was too tight. The heads are back off and it is getting one of my ported swirl ports set #5.

bluers91

Wow! I've been following your thread as I have always wanted a pair of Iron Eagles too. What kind of pushrod was that? Stock?

Fast355

iTrader: (2)

It was an older comp/crane hardened pushrod. I don't think the issue was there until the PO added 2.08/1.60 valves. When I pulled the springs the valve to guide clearance felt MUCH TOO TIGHT to me. Enough that when the valve heated up and expanded at a rate faster than the cast-iron heads it seized and broke the pushrod. Luckily the dished pistons in my HD L05 didn't touch the valve.