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2020 F-Series SD gets new V-8

 
Old 02-08-2019, 04:25 PM
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We had two threads running about the new SD.

Merged.
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Old 02-08-2019, 08:58 PM
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Originally Posted by Napalm View Post
There's a 502 Ci motor that does. And I think it does so with a carb too. I don't know that it goes in a production vehicle though.

The Viper V10 was 2v and pushrod granted a 10 cylinder.

I forget what the last GM 8.1L V8 did - it was in the previous generation HD truck as the gas engine option but I bet it was close to 500 ft lbs. I know there are many an aftermarket cam setup that meks more than 500.


Since you didn't' specify any other attributes the LT4 is 650 or so lb-ft with 2V and pushrods. It does have VVT too. And a huffer.


I know you have a deep seeded hate for the pushrod engine but there are many that do make good power. Not saying there aren't 4v Dual OHC mills that don't make decent torque either. Part of why I switched to Ford from being a GM person is because of the ecoboost engine series. That and I hate what they did with my GM stock and the company needs to DIAF over the warranty lawsuits.

But I digress.
The GM 8.1L made 330HP, 450LB/FT of torque. The LT4 has forced induction!


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Old 02-10-2019, 12:21 PM
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Powernation took a GM 632 and has it putting out 975 HP and 809 Lbft @ 5700 RPM. They did it on octane boosted pump gas. It is only a 2V pushrod iron block engine. I don't see how it MUST be DOHC 4V when a 2V can do it.
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Old 02-10-2019, 05:54 PM
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The valves are so big on a 7.3 that there was benefit to a 2v

think medium to large pizza
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Old 02-10-2019, 06:08 PM
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Originally Posted by untraceable View Post
The valves are so big on a 7.3 that there was benefit to a 2v

think medium to large pizza
Valve float at low RPM?

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Old 02-12-2019, 04:19 PM
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You can bank on some version of this motor making it into a Raptor.

There's already a ton of positive chatter / buzz about this new motor being a potential good platform for various racing applications.

Just may be the tipping point that will get me back into a Super Duty some day.

This is a big deal & is a great move by FoMoCo. I believe time will prove this out.
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Old 02-12-2019, 04:25 PM
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I'll chime in..... As far as the looks goes... Its a +++.... If the F350 6.7L is currently towing 12-18,000 I don't foresee this 7.3 generating much more power in gasoline.
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Old 02-12-2019, 04:31 PM
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reminds me of the old hot rod Lincoln motors, I think they were 460 C.I. Also. Boat anchor for racing but a torque monster for pulling.
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Old 02-12-2019, 04:50 PM
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I would not likely be a buyer for a diesel, I do not start and drive that much, I could not justify that initial cost.

I could get by on the base gas engine, but likely upgrade to the top of the gas heap. It usually is just as fuel efficient empty as the extra torque gets you going smoothly with little difference in fuel usage to get the same amount of weight moving. Where it shines is on the times you really haul or tow something.

The diesel might be better but not at the extra initial an maintenance cost.

I'll go 7.3 GAS

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Old 02-12-2019, 08:36 PM
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Originally Posted by KingRanch4Life View Post
I'll chime in..... As far as the looks goes... Its a +++.... If the F350 6.7L is currently towing 12-18,000 I don't foresee this 7.3 generating much more power in gasoline.
The 6.7 currently tows a lot more than 12-18000, it more like in a 350 27k max, and in 450 closer to 35000. My 16 is rated for 23500 with 3.73 gears in CC LWB 4X4 DRW form.

I am hoping for 525 to 550 lb/ft of torque and at 21 to 23k tow rating. The current 6.2 gets up to an 18k rating with 4.30 gears.

Last edited by 5.0GN tow; 02-12-2019 at 08:39 PM.
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