Flatblack
member
Reged: Sep 04 2009
Loc: Canada
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I just bought a 1970 440 block and I was wondering if I can throw any 6 pack intake on it?
Is there a combination of heads that would work well with the 6 pack set up?
Thanks just a student trying to save a buck!
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ScottSmith_Harms
Doc Bug
Reged: Jan 20 2003
Loc: Spokane Washington
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Yes, no problems, any factory heads that work with a stock 4 barrel intake will also work with a Six Pack intake, other than Max Wedge heads, they all have the same intake port size, and even Max Wedge heads will work if you modify the intake a bit.
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RapidRobert
circle track
Reged: Nov 20 2003
Loc: Lincoln Nebraska
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any RB (raised block) intake. 383/400 intake would not fit.
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live every 24 hour block of time like it's your last day on earth
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ScottSmith_Harms
Doc Bug
Reged: Jan 20 2003
Loc: Spokane Washington
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Well yes, but we were talking 440s Robert....I left out the obvious
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Flatblack
member
Reged: Sep 04 2009
Loc: Canada
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so is there any suggestions on what size of heads I should buy to help make my car go?
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RapidRobert
circle track
Reged: Nov 20 2003
Loc: Lincoln Nebraska
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Quote:
Well yes, but we were talking 440s Robert....I left out the obvious
no bro it's on me, I missed the obvious 
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live every 24 hour block of time like it's your last day on earth
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Flatblack
member
Reged: Sep 04 2009
Loc: Canada
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more knolwedge is better than no knowldege, thanks guys. I just Don't know much about which size of heads to put on or how the ratios work.
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HemiDave
Master Fishbulb
Reged: Jan 20 2003
Loc: Austin, TX
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If you want to stay with iron heads, any of the 'big valve' (2.14) heads would work fine with a basically stock setup. You could also use aluminum heads from 440 Source or Edelbrock which would breath a little better and be a lot lighter.
Dave
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This is strike three. Edited by Wile1coyote
~~~Need 70 Coronet full quarter panels!!~~~
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RapidRobert
circle track
Reged: Nov 20 2003
Loc: Lincoln Nebraska
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Quote:
which size of heads
I'd suggest some alum "stealths" from 440source ($899) & have your machine shop/head man check them over.
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live every 24 hour block of time like it's your last day on earth
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DaytonaTurbo
punctuation & grammar checker
Reged: Feb 26 2003
Loc: Manitoba, Canada
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Depends how fast you want to go and how much money you want to spend. A student trying to save a buck may have to rethink doing a 6-pack. Doing a 6-pack, carbs, air cleaner, linkage, all adds up to $$$. Even a dual quad is cheaper than a 6-pack.
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1974 Plymouth Satellite: 440/727, 9.25" w/ 3.55's
1987 Chrysler Daytona - Shelby Z
There's no 'e' in grammar...
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SWINGIN\'72
moparts member
Reged: Jan 21 2003
Loc: Brookeville, Md
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I did....
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A.K.A. 69_CHARGER_SE,67net440
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rbstroker
mopar
Reged: Sep 24 2006
Loc: USA
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Wasn't there an issue at one time about the six pack manifolds being factory machined at the wrong angle for complete sealing against the heads?
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PATRIOTS BUY AMERICAN!
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macmic87
mopar
Reged: Nov 21 2005
Loc: lancaster, new york
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your combination of components really needs to match the intended use of the car (street or strip). my OPINION is if you want a street car, then with steel heads stay around 9.75:1 and if you go aluminum 10.75:1 to 11:1. don't over cam!!! six packs like cams with a bigger intake center line around 114 degrees. i myself am still learning but, these items always seem to hold true. 
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1969 road runner forum
http://69roadrunner.net/phpBB3/index.php?sid=c66dfa7152ad53201f3b49f02650f512
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70Cuda383
Kaptain Kuda
Reged: Oct 07 2003
Loc: Marysville, O-H-I-O
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Quote:
Quote:
Well yes, but we were talking 440s Robert....I left out the obvious
no bro it's on me, I missed the obvious
nothing is obvious! the OP is new, has 14 posts, and is asking if a 6-pak intake will fit on a 440...may seem elementary to an experienced mopar guy, but for someone new to the game, they might know that essentially, the 383/400 and 440 are nearly the same block...afterall, same heads, same water pump housing, same exhaust, same oil pan, same motor mounts...but they might not realize the difference between a B block and an RB block! "stating the obvious" is always a good idea!
That being said...what is your budget? as already mentioned...6-paks are NOT cheap, and you said "student on a budget" 6-paks definitely have that "WOW" factor when you open the hood, but a well tuned 4-barrel is MUCH simpler, MUCH cheaper, and will have dang near identical performance to the 6-pak
my 383 stroker is basically a 440 stuffed into a 383 block, and with my holley 750 single 4bbl carb on an RPM intake, it had a best of 505hp on the engine dyno. how much would a 6-pak pick up on my combo? is it worth the extra $1,000 price tag? the holley is what...$600? the RPM is $200 brand new, can be found used for around $100-$120, vs a complete 6-pak set up if you've got nothing now, could run...$1500? $2000?
and on a relatively stock, low compression 440, the 6-pak would pick up even less over a performance 4bbl.
again...what is your budget?
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GTX MATT
Waiting...Still Waiting..
Reged: Jun 05 2006
Loc: CT
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For factory heads 915s are the best because they have closed chambers, then 906/452/346/902 which are all open, theyre all pretty much the same power wise, 906s are a tad better factory but the others are more friendly for porting.
915s arent cheap though, you can probably get a pair of eddys or stealths for the same price as freshened 915s.
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I like to let 'em stick with me for first and second, then put the hurt on 'em when I chirp third.
-'67 Satellite 273/904, engine and four speed swap soon!
- '67 GTX 440/727 SOLD
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ScottSmith_Harms
Doc Bug
Reged: Jan 20 2003
Loc: Spokane Washington
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Quote:
For factory heads 915s are the best because they have closed chambers, then 906/452/346/902 which are all open, theyre all pretty much the same power wise, 906s are a tad better factory but the others are more friendly for porting.
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62maxwgn
master
Reged: Jan 22 2003
Loc: South central PA
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Quote:
Quote:
For factory heads 915s are the best because they have closed chambers, then 906/452/346/902 which are all open, theyre all pretty much the same power wise, 906s are a tad better factory but the others are more friendly for porting.
More
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340SHORTY
Truck Nut
Reged: Aug 20 2003
Loc: Redmond, Wa
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Quote:
Quote:
Quote:
For factory heads 915s are the best because they have closed chambers, then 906/452/346/902 which are all open, theyre all pretty much the same power wise, 906s are a tad better factory but the others are more friendly for porting.
More
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81 D 150 shorty stepside 340-6 AOD 833 8 3/4 3.91s Weekend Toy
87 Ramcharger AW 150 360 727 3.21s Daily Driver
88 D100 widebox shorty 360/727 3.21s Ungratefull Project
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70Cuda383
Kaptain Kuda
Reged: Oct 07 2003
Loc: Marysville, O-H-I-O
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while you guys munch on your popcorn, I'll toss this out there.
I had my set of 906 heads freshened up, hot tanked, hardened seats installed for unleaded gas, cut just enough to ensure they were square and flat, new valves, springs, and valve job.
I was at $700 for all that. 6 months later, I yanked them off and went with out of the box eddy heads at $1300 for the pair--that was a year prior to 440 Source's "stealth heads" that are what? $900? with the same flow as eddy's, straight plugs like factory heads vs eddy's angled plugs, which can be troublesome with some headers, and a stock looking head!
Had I ported the 906s, I would have been at the same cost of the eddy's brand new.
6-pak intakes...ported iron heads, out of the box aluminum heads...again, what is your budget? with talk like this, next thing you know, someone is gonna say "while you have it apart, you might as well freshen up the bottom end too, and why bother re-sizing the stock rods when new aftermarkets are just a tad more in price, and a brand new casting vs a 40 year old abused and fatigued piece...new rods? bore the cylinders out and go with .030 over pistons to ensure a good piston seal...heck, for a few hundred more, you can toss in a stroker crank and get the complete stroker kit kit for only $1500...
and sure, you'll end up with a 600hp torque monster...but you'll also spend $6,000! how big is your budget?
be careful with that snowball sitting at the top of the hill...once it's rolling, it won't stop!
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ScottSmith_Harms
Doc Bug
Reged: Jan 20 2003
Loc: Spokane Washington
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That post addressed everything except what I'm about
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DaytonaTurbo
punctuation & grammar checker
Reged: Feb 26 2003
Loc: Manitoba, Canada
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Quote:
That post addressed everything except what I'm about
I think the number of guys on here who're concerned at all about stock heads is dwindling rapidly. With the affordability of aftermarket heads these days, it's hard to justify putting work into stock heads. If you can't afford aftermarket, IMO the OP would be best off just working with the heads he has for now. Meaning clean them up, maybe a set of new valve seals and springs and run em until he's got the dough for aftermarket.
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1974 Plymouth Satellite: 440/727, 9.25" w/ 3.55's
1987 Chrysler Daytona - Shelby Z
There's no 'e' in grammar...
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Johnahah
WAA-ambulance chaser
Reged: Jan 20 2003
Loc: U.S.S.A.
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Quote:
That post addressed everything except what I'm about
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R70RUNNER
Leg Lamp Lover
Reged: Aug 09 2005
Loc: Riverside, Ca
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Quote:
Quote:
That post addressed everything except what I'm about
waiting for the  over the 915's flow as well....comment
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Moparts! Just like Myspace but WITHOUT the teen girls!
R70RUNNER<---VP Inland Empire Chapter of the MPM
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Johnahah
WAA-ambulance chaser
Reged: Jan 20 2003
Loc: U.S.S.A.
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Quote:
Quote:
Quote:
That post addressed everything except what I'm about
waiting for the over the 915's flow as well....comment
906's and 915's share the same port shape , so ...
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TOMRR
"TomAhAh"
Reged: Jan 20 2003
Loc: LEE, MASS
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I will never say 4 Barrel again 
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screamindriver
enthusiast #2
Reged: Feb 14 2004
Loc: Harrisburg, Pa.
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Quote:
Wasn't there an issue at one time about the six pack manifolds being factory machined at the wrong angle for complete sealing against the heads?
Lot's of variables on the sealing issue...That's why they put that little slip of paper in the box with the new intakes telling you to check the mating surfaces before the final install.... 
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62maxwgn
master
Reged: Jan 22 2003
Loc: South central PA
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Never had a sealing issue in 35yrs with either cast iron or aluminum intake,never used the paper gaskets.
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