Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: BSB67]
#2563805
10/14/18 12:08 PM
10/14/18 12:08 PM
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Joined: Jan 2003
Posts: 9,924 Weddington, N.C.
Streetwize
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Weddington, N.C.
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Also bear in mind that tire diameter offsets gearing to some extent, so if your car was originally equipped with 26" tall tires and you go to 28" tires and a 4.10, you're roughly at only an effective 3.78:1 ratio when you compare the tire roll-out. The engine rpm at any given speed is easy to calculate the offset in ratios. Note: assumes a 1:1 manual trans, obviously no compensation for converter slip.
A good cooling system is essential for sustained moderate-high rpm, a higher capacity oil pan with a thermostatic cooler is the best, trans cooler as well. Oil does roughly 1/2 the cooling of an engine and the water and oil work together to wick away heat.
Last edited by Streetwize; 10/14/18 12:21 PM.
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2563860
10/14/18 02:19 PM
10/14/18 02:19 PM
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Joined: Aug 2018
Posts: 30 CA
wyrmrider
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CA
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Lots of great suggestions Built lots of Bus and Boat Motors so here goes Oil cooler -detail oil system corners and the windage tray etc suggestions road race pan tranny cooler (100 plate and fin) no S tube type) with half inch in and out and half inch oil proof lines) (Ford truck at pick a part) Throw some tall tires on it If the motor is not built yet build it with some quench and keep the overlap down if stock heads use the motorhome 352 heads with the cooling holes for the exhaust valves if stock heads use the motorhome valves viton seals light dual springs bronze guides with the spiral if roller tip rockers go to the B3 page and read the 4 tech articles get your geometry spot on (even if the motor is already built this is an easy fix) if stock rockers lash caps (stock rockers are not what they used to be) and oil through the lifters (Magnum style) and pushrods for the rocker cup I'd recommend at least Iron rockers if any spring pressure and do not like aluminum rockers for any endurance build once broken in think 0W-40 Eurospec synthetic (MB and BMW approved made from natural gas) earplugs or headset for your tunes you should be able to run a normal thermostat temp of the stat does not control maximum engine temp- if you are running hot something else is wrong plug all holes in the core support and run a spoiler/ valance
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2563877
10/14/18 02:54 PM
10/14/18 02:54 PM
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Joined: Jan 2003
Posts: 10,088 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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I Live Here
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Many good suggestions so far, but i don't see running a 440 in bone stock configuration at 4,000 rpm all day long as a problem. Just use a great quality oil, the proper tune and octane for the motor, and don't use any fast rate of lift cams.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2563897
10/14/18 03:29 PM
10/14/18 03:29 PM
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Joined: Oct 2007
Posts: 4,219 New York
polyspheric
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New York
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The original cooling capacity is more than adequate for 4,000 RPM. Oil temperature tracks load, not RPM: stock is more than enough. Why are any special pieces needed to do what the engine was designed for in 1959?
Boffin Emeritus
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2564059
10/14/18 08:59 PM
10/14/18 08:59 PM
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Joined: May 2003
Posts: 6,621 Downtown Roebuck Ont
Twostick
Still wishing...
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Still wishing...
Joined: May 2003
Posts: 6,621
Downtown Roebuck Ont
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Thanks for the ideas guys. I neglected to say that the engine will be in a stock resto car. So, no bigger oil pans or anything external that is not stock. Speed limit where I live averages 70 mph. Any other minor details you care to share? Kevin
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2564145
10/14/18 11:07 PM
10/14/18 11:07 PM
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Joined: Jan 2003
Posts: 7,526 Minnesota
Hemi_Joel
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I would recommend using a vacuum advance distributor. With light throttle high RPM Cruise conditions, the motor will be much happier and run cooler with some additional advance.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2564172
10/14/18 11:42 PM
10/14/18 11:42 PM
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Joined: Oct 2007
Posts: 4,219 New York
polyspheric
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New York
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I would recommend using a vacuum advance distributor
This^^^
Boffin Emeritus
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: gregsdart]
#2564322
10/15/18 11:37 AM
10/15/18 11:37 AM
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Joined: Jan 2003
Posts: 14,539 So. Burlington, Vt.
fast68plymouth
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I Live Here
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So. Burlington, Vt.
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Many good suggestions so far, but i don't see running a 440 in bone stock configuration at 4,000 rpm all day long as a problem. Just use a great quality oil, the proper tune and octane for the motor, and don't use any fast rate of lift cams. I agree....... if for no other reason than the noise!!
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: BradH]
#2564432
10/15/18 03:12 PM
10/15/18 03:12 PM
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Joined: Jun 2008
Posts: 2,336 Ball Ground, Georgia
Dixie
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top fuel
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Ball Ground, Georgia
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Going from (fading) memory here... With my 4.10s, 275/60R15s (loaded radius is actually shorter than advertised 28"-ish diameter, more like 27.5"), loose converter... 60 MPH is about 3000 and 65 MPH is closer to 3500. I'll drive it steadily at 65, but not any faster for any extended distances. The noise factor above that gets on my nerves.
Not sure what exactly you'd do to build it to live longer at a projected cruising RPM, vs how it should be built to handle the peak RPM. My junk is built for a performance goal: the cruise RPM on the highway is a byproduct of the package of compromises I've made to achieve that performance goal. My goal isn't a projected cruising RPM, but rather how to improve it's longevity if and when I drive it for extended periods of time at those RPM's. With today's technology, I'm sure there are things I can do internally to improve it over stock. Thanks for the input guys, lots of good stuff here.
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