Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: AndyF]
#2563471
10/13/18 05:33 PM
10/13/18 05:33 PM
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BSB67
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Build it like a boat motor, they often run like that out on the lake. You might consider an oil cooler but other than that a good high performance build should handle it. Keep the compression reasonable, clearances on the high side and use high quality parts in the valve train. Exactly. Nothing special. Just understand that it will wear our much faster. That you really cannot change.
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2563499
10/13/18 06:37 PM
10/13/18 06:37 PM
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polyspheric
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Cruising at light throttle uses a small fraction of your max power, slightly more than 2.93 gears due to friction/pumping loss.
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2563509
10/13/18 07:02 PM
10/13/18 07:02 PM
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fast68plymouth
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In 1968 my dad bought a new ss396 Chevelle with a 4 speed and 4.10’s. It was the family car. We lived in nyc at the time and would go to Vermont to go skiing 3 out of 4 weekends a month all winter long.....and it was about a 5hr trip each way. You drove around at 4K on the highway...... that’s just how it was back then.
One of his good friends had a 67 427/435hp Corvette with 4.56’s for his everyday car.
It just wasn’t that unusual to be turning fairly high rpm as you motored down the road “back in the day”.
I guess what I’m saying is....... what you’re talking about doing was being done day in and day out when these cars were new.
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: Dixie]
#2563565
10/13/18 09:17 PM
10/13/18 09:17 PM
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A fairly well known recco maximum for extended continuous use is 2,500 feet per minute piston speed. For a 413/426/440 etc. (3.75" stroke) this occurs at 4,000 RPM. The noise would bother me more than anything else, 50 years ago my DD was a 383/727/4.89 '63 Belvedere.
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2563576
10/13/18 09:48 PM
10/13/18 09:48 PM
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rickseeman
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Hey Guys,
I'm building a 4.10 geared car and was wondering how to get the 440 to live at 3500-4500 rpm when I drive it to cruise-ins or car shows? I don't usually drive more than 2 hours to a show or cruise-in. For those times I do drive at highway speeds it will put the engine RPM in that range for an hour or so. How do you build a 440 to spin those RPM's and live?
Thanks for any input! You must be young. That is the RPM every muscle car with 4:10s used to drive down the freeway at. Every day. All day. You had no other means of transportation.
2011 Drag Pak Challenger
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: lewtot184]
#2563579
10/13/18 09:52 PM
10/13/18 09:52 PM
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Spaceman Spiff
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i'd use as light of pistons, rods, and valve train components as possible. good oiling, good cooling. personally I think the goal is unrealistic, but never say never. I drive a 440 that has all these things and i'd never consider cruising it at 3500+rpm for hours. Cars came the factory with 4.11’s. Pontiacs could come wi5h 4.33’s.... And people drove them daily.
526 cubes of angry wedge, pushbutton shifted, 9 passenger killer!
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Spaceman Spiff]
#2563758
10/14/18 09:46 AM
10/14/18 09:46 AM
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lewtot184
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i'd use as light of pistons, rods, and valve train components as possible. good oiling, good cooling. personally I think the goal is unrealistic, but never say never. I drive a 440 that has all these things and i'd never consider cruising it at 3500+rpm for hours. Cars came the factory with 4.11’s. Pontiacs could come wi5h 4.33’s.... And people drove them daily. I was there in the '60's and drove a low geared car every day. we didn't cruise them 4000rpm on the highway. the engines had a life span about half of true daily drivers; which didn't have a long life span.
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2563760
10/14/18 10:09 AM
10/14/18 10:09 AM
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SomeCarGuy
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If you can find a factory build that doesn’t burn too much oil you should be fine.
I want my fair share
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: lewtot184]
#2563767
10/14/18 10:23 AM
10/14/18 10:23 AM
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BSB67
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i'd use as light of pistons, rods, and valve train components as possible. good oiling, good cooling. personally I think the goal is unrealistic, but never say never. I drive a 440 that has all these things and i'd never consider cruising it at 3500+rpm for hours. Cars came the factory with 4.11’s. Pontiacs could come wi5h 4.33’s.... And people drove them daily. I was there in the '60's and drove a low geared car every day. we didn't cruise them 4000rpm on the highway. the engines had a life span about half of true daily drivers; which didn't have a long life span. This is what I recall too Lew. Cars with 3.23 gears were pretty much wore out at 100,000 miles. They were burning oil at 60,000. The flip side is that today, it's rare for me to actually put more than 2000 miles per year on my muscle cars. So life expectancy never factors into it for me. Like someone else mentioned, I cannot stand listening to them running at higher rpm for extended times.
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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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Streetwize
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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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wyrmrider
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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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gregsdart
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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..603 156 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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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?
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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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Twostick
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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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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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I would recommend using a vacuum advance distributor
This^^^
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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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fast68plymouth
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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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Dixie
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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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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2564553
10/15/18 07:57 PM
10/15/18 07:57 PM
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stock rockers with oil through the pushrods?
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: BSB67]
#2564555
10/15/18 08:03 PM
10/15/18 08:03 PM
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fast68plymouth
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...... With today's technology, I'm sure there are things I can do internally to improve it over stock. Today's technologies are: 1) 6+ speed transmissions, 2) computer controlled efi. And variable cam timing........so you have the right sized cam(sorta) cruising at 1900 in double OD, and at 6k+ while you’re ripping through the gears.
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: fast68plymouth]
#2564938
10/16/18 04:48 PM
10/16/18 04:48 PM
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BradH
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...... With today's technology, I'm sure there are things I can do internally to improve it over stock. Today's technologies are: 1) 6+ speed transmissions, 2) computer controlled efi. And variable cam timing........so you have the right sized cam(sorta) cruising at 1900 in double OD, and at 6k+ while you’re ripping through the gears. All true, but I also look at lighter pistons with better skirt designs, narrower ring packs that conform to the cylinder walls better, reduced journal sizes to reduce rotating resistance, and improved oil management (scrapers and effective windage trays) as comparatively "modern" tech vs what some of these archaic platforms used when they rolled off the assembly line decades ago.
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: merpar]
#2564977
10/16/18 05:59 PM
10/16/18 05:59 PM
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1Fast340
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Best advice on here, Gear Vender I agree that way the OP can add even more gear and get even more acceleration whitout having to spinn that thing higher than 35-4500RPM driving down the road at the legal limit. Those things turned that kind of rpm on the road back when they where new its not some kind of rockescience.
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: 1Fast340]
#2564983
10/16/18 06:05 PM
10/16/18 06:05 PM
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Joined: Nov 2007
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Pacnorthcuda
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Best advice on here, Gear Vender I agree that way the OP can add even more gear and get even more acceleration whitout having to spinn that thing higher than 35-4500RPM driving down the road at the legal limit. Those things turned that kind of rpm on the road back when they where new its not some kind of rockescience. But that does not answer the OP's question.
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Re: Recommendations building a 440 to live at 3500-4500 rpm?
[Re: Dixie]
#2565000
10/16/18 06:52 PM
10/16/18 06:52 PM
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fast68plymouth
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IMO, it’s really pretty basic......
It would do what the OP is asking if it were bone stock.
If you build it with higher quality parts and better attention to machining detail and clearances, surface finishes, etc, than the factory did....... it will hold up better than it would if it were like it was when it rolled off the assy line.
If it’s not being raced in a class where stock displacement was a requirement, then I’d build a stroker...... which doesn’t alter the appearance at all...... and run 3.23’s instead of 4.10’s. This way you get the added performance of the extra cubes to offset the taller gears, which greatly improve the streetability of the car.
More power, more streetability...... looks 100% stock......win,win,win.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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