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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Joined: Feb 2005
Posts: 4,333 Prospect, PA
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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Joined: Oct 2007
Posts: 4,219 New York
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.
Boffin Emeritus
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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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Joined: Jan 2003
Posts: 14,531 So. Burlington, Vt.
fast68plymouth
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I Live Here
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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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polyspheric
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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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Joined: Jan 2012
Posts: 2,726 Stuttgart, Arkansas
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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Joined: Nov 2010
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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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Joined: Jun 2008
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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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Joined: Feb 2003
Posts: 10,294 Someplace you aren't
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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Joined: Feb 2005
Posts: 4,333 Prospect, PA
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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