Unported head quickness?

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I get the gist of the thread Rob but in my opinion dollar for dollar porting is a much better bang for the buck than a lot of other mods. And you can do a mild port job yourself with minimal tools. Just don't touch the floor unless you know what you're doing.

Just sayin...
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I hear ya brother, then again, not everybody has money for a porting of there heads. Nor the tools or the want/will/ know how or simply, the balls to grind on there only set of heads. All of that mentioned is all fine and good.

Save the money on bowl or fully ported heads and roll it over into a set of gears and a converter or cam? OR roll the dice you do not create a disaster and go slower, or worse yet, destroy the only heads you have.

Then where are you.

This thread is designed to help those go fast without porting the head. It's just that simple. Nothing more, nothing less. It's always easy to say what you said. The problem is not everybody is willing to leap into the darkness and then be behind the 8 ball or just simply stuck with broken, busted, ruined heads.

Help a MoPar brother out. There are plenty of people wondering out there.
 
70 dart 3,000lbs. 340+30 eagle crank eagle h rods ross flat top racer brown stx42m camw2 unported 2.02 1.60 850 dbl pump 84 squared 4speed 5.13 dana60 29.5x11.5 1.36 60ft.10.01 137mph atl dragway early march 2011.
 
No,i dont run any nos to hard on parts. it is a 416 ie. 340 +30 over 4" crank 6.123 rods ross flat top pistons,racer brown cam 1977 w/2. unported ,with w5 ported the car ran 9.71at 140s as far as anymore secrets I wont tell: lol
 
chassis is a factory with frame connectors narrowed dana with 40 spline spool strange axles 40 splined 5:13 pro gear 29.5x11.5 m/t .095 x3" drive shaft,liberty clutchless 4 speed,launch at 6,500 shift at7,000 pulls through at 7,600. also is a ladder bar set-up.engine will go to 8600 but power peak is around 7200 to 7800.
 
timopar said:
WOW! tell us about your chassis combo.
and camshaft, trap rpm must be close to 8000
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Calvert bars and springs, Afco double adjustable shocks, 30x10.5 Hoosier radials, Dana with M/W gun drilled 40 spline axles, aluminum spool, aluminum drive shaft and 5.13 gears.
Camshaft is a custom roller from Bullet 280,290 @.050 over .700 lift goes through traps @ 8000 to 8200.
I just got a lightweight ProTrans that I haven't made a pass with yet, should pick it up a little :thumblef:
 
Engine and parts; 30 over 340, 292-509 purple shaft, m1 single plane, headman headers, underdrive pulleys, clutch fan, jacobs electronics x heads with the 2.02 1.60 carb is a tricked double pumper

Trans/converter 904 cheetah manual reverse, low first gear and a cheap GER 3500
Rear gear and tire size 4:10 with 29x15.50 sportsman pros

Suspension drag shocks and springs

Light weight parts
(or missing parts) full interior with a glass front bumper

Cars weight 3200 with me and half tank of gas

E.T. / MPH
best time 12.59 at 105

thats driving to the track (45 mins) and just taking the air cleaner off
 
Back in the day (1970) a 318, with heavier valve springs, and a re-jetted 500 cfm, traction bars, e70 tires, open 3.23 , 3 speed manual, would really hunt to break into the 14;s.
 
The Shocker said:
My weathered early Dart is running a 10 to 1 408 with unported Econo W2's ,.484 lift 235 duration Hyd. flat tappit ,open Hedman fenderwells,and a 750 Demon.Adapted PG trans with 3500 or so stall and 4.10 gears on 26x8.5 slicks.Stock 47 yearold 6 cylinder springs and $35.00 1960's vintage slapper bars from C-list with wore out Monroe shocks .Weighs 3050#'s with me in it.150 passes on everything and going faster all the time.Best in the 1/4 of 11.40 flat @114 and 7.17 @ 95 in the 1/8 at different tracks .Best 60 foot of 1.54 .Heres a vid of my Dodge .Its not pretty to look at ,but gets the job done .Please excuse the sorry sound qaulity ,my camera and the vibration from the Dart dont play well together ...

302 Found
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I set a new best last night at TNT of 7.13 in the 1/8 at 95.04 mph with no changes to the car other than new slicks of the same size .Im getting closer to a 6.99 and i know the Dart has one in it with more tweaking using these same unported heads ,compression ratio and wimp cam ...
 
73 Duster full interior street car weight is around 3200lbs. .030 over 440 with stock 906 heads 2.08/1.74 valves. schumacher headers, 800 holley, .528 MP cam. compression is probably 10:1. Best run was a 12.3 @ 109 that was with the MP.484 cam. I recently found out the throttle was not opening all the way so I'm guessing there is still more left, since I fixed it the car acts and drives completely different. Best run with .528 cam has been 12.6 @ 106 need to run it again since I fixed the throttle.
 
perfacar said:
1972 duster 340, jerico trans, 5.57 gears, 9zx 30 slicks, stock unported heads, 1.88 & 1.60 valves, stock intake & T.Q. carb, 11.37 @ 115.50 mph, 1.49 60 ft, 3335 wgt
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Right about here.
I haven't tried to do anything with unported heads , but the answer to " how fast can you go on stock un ported heads ? " can be summed up in two words.
Stock Eliminator.
 
'71 Duster
360 .030 Keith Black flat top Hypers
Lunati Bracketmaster 292 Hyd.
unported 360 heads 2.02/1.60 w/3 angle valve job
750 Holley vac. sec.
Old style Performer RPM
Stock bottom end rebuilt, ARP rod bolts
727 stock rebuild w/3000 TCI converter
8 3/4 4.10 suregrip
Worn out 71' leaf springs
26" x 9" M/T on ralley wheels
Flowtech 1 5/8 headers w/2 1/2 flowmasters
3200#w/driver
12.60@107
Daily driver/street trim in '97-'99
 
I have edelbrock rpm heads on a 493 big block that went 9:53 at 141. I wouldn't waste my time or money on cast iron heads when the rpm's are so cheap and flow so good.
 
perfacar said:
1972 duster 340, jerico trans, 5.57 gears, 9zx 30 slicks, stock unported heads, 1.88 & 1.60 valves, stock intake & T.Q. carb, 11.37 @ 115.50 mph, 1.49 60 ft, 3335 wgt
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mission raceway, 11.21 @ 117.24 3335 wgt
 
Ok... I will add my junk on here to ..
Car: 71 Dart
Engine:70 340 /416
ACL H beam rods SCAT9000 4"crank
KB25cc dish piston
Heads:Indy/RHS 1.92/1.60's no porting
PRW Stainless steel rockers 1.5's
Cam: Lunati 60405 voodoo hyd .533 in. .552ex
Intake: Super Victor
Carb:BIGS 750 Stage 5 Primary jet 75 Secondary jet 82
Headers :Hookers super comp
Trans: 904 4000 stall w/man rev valve body
Rear End : Dana 60 w/4.30's

Super Stock Springs
Rear tires M/T 255/60R/15's on stock rims
Yep its a Street car only no track time. for real!!!!!!!!
Thanks to mike @ MRL Performance.. I will be seeing you soon.
Well ok i may put a time or two to see what Augie will do but as of no ET to post ......
 
I don't wanna come off as a jerk, BUT, it is kind of pointless to not POST A TIME.
This is the whole idea of the thread. To help people go fast without the added expense of porting the head. So if no one knows how fast your going....

The build sure looks tasty though so you should certainly get your butt to the track and let us know how she does. I for one will certainly be looking forward to the results!
 
racerx23 said:
I have edelbrock rpm heads on a 493 big block that went 9:53 at 141. I wouldn't waste my time or money on cast iron heads when the rpm's are so cheap and flow so good.
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Reguardless of your opinion of metal material for your head choice, this is what the thread is about! Doing what you can with unported heads. Steel or aluminum.

You listed your achievement minus what else it takes. Tell us about your stuff!
Help a MoPar brother out!
 
rumblefish360 said:
I don't wanna come off as a jerk, BUT, it is kind of pointless to not POST A TIME.
This is the whole idea of the thread. To help people go fast without the added expense of porting the head. So if no one knows how fast your going....

The build sure looks tasty though so you should certainly get your butt to the track and let us know how she does. I for one will certainly be looking forward to the results!
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True ..... you are so very right. i will get some times for you soon....
 
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