440/500hp. what is the easiest way to accomplish this
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Thread: 440/500hp. what is the easiest way to accomplish this

  1. #1
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    440/500hp. what is the easiest way to accomplish this

    OK,I want to build a 500hp 440 i have a 73" motor home steel crank i have been told without taking it apart yet that it has six pack rods and flat tops,it also has a pair of 75" 452 heads on it,i seem to be having trouble looking this motor up,is the bore and stroke different on this engine being in a motor home.do i really need to go to 2.14 and 1.81 valves to acomplish 500hp. or can i run the stock valves. with a template port job or do i need to be more agressive porting the heads,the cam i have is a flat tappet 509/292 purple cam,i am not opposed to changing the cam.this motor is going to take a little while for me to put together anyway beacause of a remodeling on a home,i would like it to be responsive on the lower end i was gonna run a eddy performer rpm intake with an 850 eddy,do i need to get rid of the six pack rods and heavy pistons,i was gonna use a set of 4barrel rods from a 71"motor and the pistons with valve reliefs in it to but if i run the 71 pistons i will be giving up around 5cc if i am correct.i would like to keep my CR. at 9.5:1 if possible what do i need to do with what i have to work with to accomplish the 500hp. i will also be using a 727 on the back how big of stall will i need i have a 3.55 sure grip right now and i want to put a 3.91 in it for running it,i would like to be led in the right direction and i know there are alot of knowledgable people on here that can give me some good advice,remember i want to do this as cheap as i can 2 tenths of a second does not mean nothing to me i just want to make some good clean hp. for the street and maybe take it to the strip and see what it will run but not making a habbit of it,just want a nice driver it is going in a 73"swinger...........Ted

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  3. #2
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    Re: 440/500hp.

    This link is to the build for my 63.* It has the specs on the 440 I used in my 63 and I guess it makes right about 500 flywheel HP.* * I use factory 906 heads and the MP .557 cam at 10.0 comp with KB pistons.* *It has pushed my 3700 lb 63 to 11.50's so I am happy as I built it on a budget shooting for high 11's.* *Good luck with your car.* ** * Ron

    http://www.1962to1965mopar.ornocar.com/mmo82008.html
    My car , 63 Sport Fury Max Wedge wanna be pump gas street car......10.76 @ 124.49 ! ! My page on the 62-65 Mopar site...http://www.1962to1965mopar.ornocar.com/mmo82008.html

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    Re: 440/500hp. what is the easiest way to accomplish this

    You don't need the bigger valves. The 4bbl rods and pistons will require a new neutral balance dampner and converter/flywheel. Along with rebalancing the crank and rotating assy. If your "other" 440 pistons have valve notches in them then they are not 4bbl pistons. They are six pack pistons and have a higher compression distance than any of the flat-tops. They're stock pistons right? The notched pistons will raise your compression and would be a good idea assuming they are in good shape.

    Whatever you decide. A raise in compression will net throttle response and horsepower. Like 383man says the .557 solid is a great cam and will make more HP than the hydraulic .509 and be more streetable.
    Moparteacher

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    Re: 440/500hp. what is the easiest way to accomplish this

    i have not looked at the pistons in my motor yet the 71"4barrel rods i can buy have the valve relief pistons on them i can buy them for just a few bucks

  6. #5
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    Re: 440/500hp. what is the easiest way to accomplish this

    500 horses is almost a no brainer in a 440. One of the first I ever built made 512 hp on my boss' very stingy dyno. I ran the 509 cam, 906 heads I pocket ported and installed Manley Pro Flo valves, stock size, At the time, the Performer RPM didn't exist, so I used an Edelbrock CH4B and an 850 Holley. That engine ran great and made more power than my boss' roller cammed, Hilborn injected 350 Chevy.

    Lose the six pack rods. I swapped up to them and the engine revved slower and cost a fortune to balance. If it isn't a total budget build, get some 440Source H beam rods and .990 pin pistons.

    My last engine was a 440 with stock stroke, Eagle rods, .990 pistons, a Comp 288 Street roller, the same 906 heads and a Performer RPM. Car ran almost a full second faster, but then again, I was not the king of consistancy with a 4 speed and street tires.
    It takes a Mopar to catch a Mopar.

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    Re: 440/500hp. what is the easiest way to accomplish this

    Stock 440 add 150 hp of nitrios

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    Re: 440/500hp. what is the easiest way to accomplish this

    Quote Originally Posted by Womanator
    Stock 440 add 150 hp of nitrios
    thanks for the advice

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    Re: 440/500hp. what is the easiest way to accomplish this

    Quote Originally Posted by Womanator
    Stock 440 add 150 hp of nitrios
    How long will that stock 440 hold up though?

  10. #9
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    Re: 440/500hp. what is the easiest way to accomplish this

    that would depend on the engine, I say do it

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    Re: 440/500hp. what is the easiest way to accomplish this

    50 pass's on the juice.This is kinda like the 8 1/4 rearend that's under it.I'm waiting for the failure to happen.At least 200 pass's on this combo,2nd set of rear tire's.






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    Re: 440/500hp. what is the easiest way to accomplish this

    you guys are gettin a little of track here,the thread was how to get 500hp out of a stock 440 the easiest way thats what i want to know this motor is going in a car thats gonna be stock,sleeper lookin

  13. #12
    Steve DeTar
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    Re: 440/500hp. what is the easiest way to accomplish this

    Here's what you need to read. stock valve sizes, small cam, headers, holley intake, a good carb and ignition. Pistons are forged, not even close to zero deck. Dual purpose engine. Steve
    http://www.compcams.com/Community/Ar...p?ID=-36660752

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    Re: 440/500hp. what is the easiest way to accomplish this

    thanks steve
    that is really amazing the increase in hp. they made by bolt on stuff that is what i am interested in,i read on here somewhere in the last couple days a guy said it was a no brainer to get 500hp easy out of a 440,he said he did just a few things and got 515hp out of one of the first ones he did.i noticed that article was april of 2001 also,dick landy had an issue out how to get 505hp out of a 440 with 906's with the chrysler template porting and a few other things,i got the 452 heads but they flow good this is something like i want to do thanks steve for all the help

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    Re: 440/500hp. what is the easiest way to accomplish this

    I built mine for 11,000.00.

    1967 440 .030 Balanced and Blueprinted
    Steel crank .010/.010
    Edelbrock aluminum Heads Big Valves
    Harland Sharp Roller Rockers
    Manly rods
    Lunati Voodoo Cam .556 Lift
    Speed Pro 2295 LF Popup's with .147" Dome 10.5/1
    Edelbrock Ch 28 Dual Quad split plenum intake
    2 Edelbrock 500 performer Carbs
    MSD Ignition system Pro Billit w/6AL box
    Cloyes hex adjust chain
    High volume pumps Oil and Fuel
    TTI 2" primary 3-1/2 inch collectors

    Rods were re-sized, aluminum everything to save weight and run on the dyno, all this and all I got was 459 horse@5400 with 475 Ft.lbs. of torque, Is it the dyno or is it me I spared no expence building mine and I was shooting for 500 horse too but the numbers said otherwise and that was at the flywheel. Dave
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    Re: 440/500hp. what is the easiest way to accomplish this

    I think every dyno is probably different, maybe take it to the dragstrip and let that be your dyno. But it seems like you should have been more in the 500 hp area, maybe there's some more left on the table with carb and ignition tuning?


    The build Steve posted is pretty much the build I did. My only changes were I used the 6-pack pistons for a little more compression and zero decked, an Engle cam with similiar specs, Performer RPM instead of Street Dominator intake, and 850 DP instead of 850 vac secondary.

    Once I get it all together, running, sorted-out, hooking up, maybe someday I'll hit it with a 200 shot of .
    In the garage:  '67 Plymouth Satellite - once my 318-powered daily driver, now my project car with lots of "patina".  440/727/4200 stall/3.91

    "Old School" '71 440 build:  "6 Pack" pistons at zero deck, Engle .534, 238@.050" Hyd, stock 452s, Performer RPM, Holley 850 DP, Hooker headers, FBO ignition

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    Re: 440/500hp. what is the easiest way to accomplish this

    wow i am really sorry to hear ya did not hit your goal of what ya set out for,i am no expert on this but you have some expensive parts to from alot of what i have been reading up on alot if it could be in your intake and carbs,i know you can get more hp. out of what you have there.I know the set up you have is capable of more power with probally some minor changes, someone will have some better answers than i will.I know that motor is cable of more than that

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    Re: 440/500hp. what is the easiest way to accomplish this

    Quote Originally Posted by 67Satty
    The build Steve posted is pretty much the build I did.* My only changes were I used the 6-pack pistons for a little more compression and zero decked, an Engle cam with similiar specs, Performer RPM instead of Street Dominator intake, and 850 DP instead of 850 vac secondary.*

    Once I get it all together, running, sorted-out, hooking up, maybe someday I'll hit it with a 200 shot of* .*
    are you running stock heads as stated in his post or did you port them,and how does that thing run are you satisfied with it

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    Re: 440/500hp. what is the easiest way to accomplish this

    Stock heads just like the build-up he posted a link to and I haven't run it yet. Still sitting on the engine stand waiting for me to get the rest of the car ready for it. I'll put some 440 Source stealth heads on it the next time I have $900 I don't know what to do with (which isn't very often with three kids in Montisorri pre-school all at the same time).
    In the garage:  '67 Plymouth Satellite - once my 318-powered daily driver, now my project car with lots of "patina".  440/727/4200 stall/3.91

    "Old School" '71 440 build:  "6 Pack" pistons at zero deck, Engle .534, 238@.050" Hyd, stock 452s, Performer RPM, Holley 850 DP, Hooker headers, FBO ignition

  20. #19
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    Re: 440/500hp. what is the easiest way to accomplish this

    Tried to buy the Mopar templates for the heads and was told they are not making them anymore.
    The post said easiest way to make 500 hp.How am I off topic?


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    Re: 440/500hp. what is the easiest way to accomplish this

    67satty
    there is another link i saw also one that dick landy had out similar to that one but they had the 906's template ported with the performer intake on it i can't remember if it was the rpm or not with an 850 carb if i can find the link i will try to post it they made like 505hp. with it,i know what you mean about the money for the heads i would like a set of the stealths myself,musle motors carrys them there around 100mi.
    from me,are you gonna throw that motor on a dyno or just run it

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