Re: 500" Engine Build 440 Source?
[Re: kz5rt2]
#602132
02/02/10 10:45 PM
02/02/10 10:45 PM
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Joined: Jan 2004
Posts: 27,347 Today? Who Knows?
1_WILD_RT
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Management Trainee
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Today? Who Knows?
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Quote:
I forgot to mention, I'm looking at no more than a CR of 9.5:1.
Thanks
Why so low? Aluminum heads pull enough heat out to typically allow an extra point of compression without worries of detonation... & if you get the right combonation of parts to have effective quench thats good for another half point... Lots of streetable engine run 10.5-10.8 on pump fuel...
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Re: 500" Engine Build 440 Source?
[Re: kz5rt2]
#602137
02/02/10 11:14 PM
02/02/10 11:14 PM
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Joined: Jan 2004
Posts: 27,347 Today? Who Knows?
1_WILD_RT
Management Trainee
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Management Trainee
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Posts: 27,347
Today? Who Knows?
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Quote:
Eventually I plan on installing a crossram setup. Didn't the max wedge/superstock manifolds flow well?
They flow as well as any manifold.. The just weigh a ton... But I think the cool factor is well worth it.. Unless your building a race car 500 inches means enough torque that you can leave a little on the table & still have an ear to ear grin...
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Re: 500" Engine Build 440 Source?
[Re: kz5rt2]
#602138
02/02/10 11:29 PM
02/02/10 11:29 PM
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Joined: Jan 2003
Posts: 31,200 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,200
Oregon
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Look in the tech archives for plenty of 500 inch stroker builds. http://www.moparts.org/Tech/Archive/bigblock.htmlI also wrote an entire book on the subject which you can find at various Mopar parts dealers. I don't think you'll need the 3.91 gears if you build a 500 inch engine. 3.55 will work just fine as will 3.23 gears.
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Re: 500" Engine Build 440 Source?
[Re: AndyF]
#602139
02/02/10 11:52 PM
02/02/10 11:52 PM
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Joined: Jan 2003
Posts: 3,031 Erda, UT
67Charger
master
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master
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Posts: 3,031
Erda, UT
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My 496" 440 source motor runs 10.4:1, .034" quench with the Eddie RPM heads and is faster on pump gas than on race fuel. The cam is .604"/.597", 264°/259° solid. I've spun it to 7000, and the timing is 18° initial and 34° total. After tuning it is putting out right at the 600HP mark and 600 ft.lbs from 3000 on.
11.33 @ 118.46 on motor 10.75 @ 125.35 w/ a little spray Now, high Speed Open Road Racing - Silver State Classic Challenge, Nevada Open Road Challenge, Big Bend Open Road Race Rocky Mountain Race Week 2020, 2022 2.0, Sick Week 2023
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Re: 500" Engine Build 440 Source?
[Re: ahy]
#602142
02/04/10 10:33 PM
02/04/10 10:33 PM
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Joined: Jul 2005
Posts: 1,954 Blairsden, CA
Triggerfish
top fuel
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top fuel
Joined: Jul 2005
Posts: 1,954
Blairsden, CA
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Quote:
Quench means at least part of the piston comes very close to the head at TDC. The near contact stirs up the mixture to help cool it and prevent detonation. .040" clearnace is considered ideal and fairly easy to get with Ed or 440 Source heads. Set the flat part of the piston at zero deck (piston comes right up to the top of the block) and use a common .040" thick head gasket and you have it.
Careful piston choice, deck machining and/or custom pistons may be required to get 0 deck but the benefit is significant.
Very true & ceramic coatings for the combustion chambers & piston tops also can significantly prevent hot spots & detonation, so w/ quench, aluminum heads & coatings, you should have no problem w/ high compression.
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Re: 500" Engine Build 440 Source?
[Re: kz5rt2]
#602143
02/04/10 10:34 PM
02/04/10 10:34 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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I think you are ok, (cannot remember how they route) but you may want to check to make sure the angle plug of the Edelbrocks will work with your manifolds. Otherwise the straight plug Stealth will have to do.
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: 500" Engine Build 440 Source?
[Re: cragar]
#602146
02/05/10 12:47 AM
02/05/10 12:47 AM
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Joined: Jan 2003
Posts: 7,499 Austin, TX
HemiDave
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Austin, TX
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Quote:
so 915 with .040 quench what compression can I run and still use pump regular or premium?
About 9.5:1 with the steel heads.
Dave
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Re: 500" Engine Build 440 Source?
[Re: HemiDave]
#602148
02/05/10 01:14 PM
02/05/10 01:14 PM
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Joined: Aug 2009
Posts: 121 Detroit, MI
kz5rt2
OP
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OP
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Detroit, MI
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Quote:
Quote:
so 915 with .040 quench what compression can I run and still use pump regular or premium?
About 9.5:1 with the steel heads.
Dave
So. 10.5:1 is sufficient with the stealth heads and still run pump gas?
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