Re: 440 question
[Re: MoparJunkie]
#108841
08/22/08 10:40 AM
08/22/08 10:40 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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915 heads with KB pistons(in the CR you want) & .035"-.040" quench(piston to head).
live every 24 hour block of time like it's your last day on earth
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Re: 440 question
[Re: Mr.Yuck]
#108843
08/22/08 12:25 PM
08/22/08 12:25 PM
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Joined: Sep 2006
Posts: 1,131 Home of the Bluegrass
MoparJunkie
OP
super stock
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OP
super stock
Joined: Sep 2006
Posts: 1,131
Home of the Bluegrass
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Gonna go with 4 speed and 3.91 gear.....
"It takes a Mopar to catch a Mopar” 1971 Roadrunner FJ6 Sassy Grass 505"RB, 18 spline 4 speed, and Dana 60 with 3.54 2022 Hellcat Charger Widebody Redeye Jailbreak: Hellraisin with 8 speed auto
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Re: 440 question
[Re: MoparJunkie]
#108846
08/22/08 01:53 PM
08/22/08 01:53 PM
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Joined: Dec 2007
Posts: 7,759 So Cal
HealthServices
Why would you even post that?
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Why would you even post that?
Joined: Dec 2007
Posts: 7,759
So Cal
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If you do not have a rotating assembly I would recommend a stroker kit. Your choice on how much you want to spend, but they do not have to cost that much.
No replacement for displacement!
Allen
Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first.
Life was a little easier when I was just a wrench.
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Re: 440 question
[Re: DaytonaTurbo]
#108848
08/22/08 05:22 PM
08/22/08 05:22 PM
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Joined: Sep 2006
Posts: 1,131 Home of the Bluegrass
MoparJunkie
OP
super stock
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OP
super stock
Joined: Sep 2006
Posts: 1,131
Home of the Bluegrass
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I want to get 500 hp.... but look as stock as possible? ie...sleeper. As much as a sleeper as a six pack can be...lol Would like to keep cast heads? If possible don't want to stroke either. Can I get that with bigger flat top pistons and good sized cam with ported and polished heads????? Like I said just don't want to get too radical!
"It takes a Mopar to catch a Mopar” 1971 Roadrunner FJ6 Sassy Grass 505"RB, 18 spline 4 speed, and Dana 60 with 3.54 2022 Hellcat Charger Widebody Redeye Jailbreak: Hellraisin with 8 speed auto
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Re: 440 question
[Re: MoparJunkie]
#108849
08/22/08 07:23 PM
08/22/08 07:23 PM
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Joined: Feb 2003
Posts: 12,675 Columbia, CT
moper
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 12,675
Columbia, CT
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In all honesty, a rebuild with KB flat tops set to 0 deck, anda medium sized hydraulic cam (230ish duration at .050) will make 500hp or very close if it's done by a performance shop. It's not magic, nor expensive. No exotic heads, just a good performance 3 angle valve job, adn excellent machining gets you there.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: 440 question
[Re: MoparJunkie]
#108850
08/22/08 08:22 PM
08/22/08 08:22 PM
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Joined: Feb 2005
Posts: 4,313 Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,313
Prospect, PA
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Good for you. Your asking the right question at the right time. You'll get lots of good info, but some of it might sound conflicting at times. You'll need to sort through it and decide what is best for you, based on budget, performance goal, and streetability. You might identify your performance goal in terms of et and mph, and your idea of "streetability" as the responses you get will be even more on-point. A flat top piston with 915s and a tight quench distance will perform very vey well, however, I think that combo will push the CR up close to 11:1 and might be difficult to use pump gas. But if you want a big cam with lots of lope, you might be able to get away with it. Others have used the reverse dome KB piston, pump gas, iron head, small cam (224* 0.050") and flirted with 12s with BF Goodrichs and 3.23s. Having well prepared heads is key. Good Luck
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Re: 440 question
[Re: BSB67]
#108851
08/22/08 08:28 PM
08/22/08 08:28 PM
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Joined: Sep 2006
Posts: 1,131 Home of the Bluegrass
MoparJunkie
OP
super stock
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OP
super stock
Joined: Sep 2006
Posts: 1,131
Home of the Bluegrass
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Tight quench meaning deck the block mill the heads????
"It takes a Mopar to catch a Mopar” 1971 Roadrunner FJ6 Sassy Grass 505"RB, 18 spline 4 speed, and Dana 60 with 3.54 2022 Hellcat Charger Widebody Redeye Jailbreak: Hellraisin with 8 speed auto
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Re: 440 question
[Re: MoparJunkie]
#108852
08/22/08 09:31 PM
08/22/08 09:31 PM
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Joined: Sep 2005
Posts: 5,117 Haslett, MI
7DRRunner
master
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master
Joined: Sep 2005
Posts: 5,117
Haslett, MI
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sounds like a nice project
subscribed for more info
"Good luck on your project."
1970 Road Runner
"Accellertii Incredibus"
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Re: 440 question
[Re: MoparJunkie]
#108854
08/22/08 10:19 PM
08/22/08 10:19 PM
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Joined: Aug 2005
Posts: 4,861 Riverside, Ca
R70RUNNER
master
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master
Joined: Aug 2005
Posts: 4,861
Riverside, Ca
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I'm a firm believer in Bob K's Mr. Sixpac cam... Idles like a stone stock engine, runs well into the 12's with gears on bias plies. Ask on the A-12 board I'm using one in a 383... putting a 6bbl set together for it (slowly) even with the 4bbl it does fine... needs more gear, your 3.91's are that's what I have to install soon. 10:1 915's good valve job! Shoot for squish! Bob K's cam Bobs Super Bee
Current cars: 2000 Dak Quad Cab, 2012 Challenger,1970 Road Runner, 1994 Firehawk
1966 Coronet post sedan, 1988 Corvette, 2005 Magnum RT all SOLD
R70RUNNER<---VP Inland Empire Chapter of the MPM
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Re: 440 question
[Re: R70RUNNER]
#108856
08/22/08 10:49 PM
08/22/08 10:49 PM
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Joined: Sep 2006
Posts: 1,131 Home of the Bluegrass
MoparJunkie
OP
super stock
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OP
super stock
Joined: Sep 2006
Posts: 1,131
Home of the Bluegrass
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Be more specific on squish.....decking the block? or milling heads?
"It takes a Mopar to catch a Mopar” 1971 Roadrunner FJ6 Sassy Grass 505"RB, 18 spline 4 speed, and Dana 60 with 3.54 2022 Hellcat Charger Widebody Redeye Jailbreak: Hellraisin with 8 speed auto
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Re: 440 question
[Re: HealthServices]
#108858
08/22/08 10:59 PM
08/22/08 10:59 PM
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Joined: Dec 2007
Posts: 7,759 So Cal
HealthServices
Why would you even post that?
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Why would you even post that?
Joined: Dec 2007
Posts: 7,759
So Cal
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Weight your options on heads too. Check out how much to do all the work on a iron head before you shell out the money. Porting is not cheap. If it gets anywhere past $600 you may be better off getting a aluminum head like that from 440 source. You will also have less tendency to detonate with aluminum heads. Another plus if you have junk gas where you live.
But on another note if you have the alcohol blended fuel (higher octane) where you live you should take advantage of it and build a high compression motor.
Allen
Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first.
Life was a little easier when I was just a wrench.
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