doug97gxe

a lot of the engines on street outlaws make 3500 to 4000 hp on push rods as well

Takeda

[QUOTE=Napalm;6085126]

GM has a number of engine over 500 ft lb torque with 2V and pushrods. Hell Ford had one or 2 some time ago.

Name 1 with reference that's NA!

lawndart

It's interesting no di. It seems like big bore high compression could be a detonation problem without di, especially on a low rpm workhorse. Maybe those 2v heads swirl like nothing before? Or derated with 87 octane and conservative timing?

Ssls6

Here is one

GM 454 HO

Takeda

NOT "OVER" 500lb/ft

ZeroTX

The new F150 will likely be a 2021 model. Possibly a 2020, but I highly doubt it.

Takeda

NASCAR is the only racing series that doesn't allow 4V, and DOHC, because Chevy doesn't have a 4V DOHC V-8. Toyota doesn't have a 2V pushrod production V-8, and had to build one just for NASCAR

Ssls6

Here is another (notice it is bored a bit farther)

502 HO

not sure why you feel you have an axe to grind? Low rotating valve train mass (used to achieve higher RPM) and 4 valve heads (used to breath at high RPM) are not the main factors here. DI which can allow higher CR does matter....again more heat. Cam profiles matter as you don't want a lot of overlap.

RX1Cobra

Way to split hairs... but these motors are really similar in displacement and ones not based on 60+ year old design. The crate GM 454 also has a low compression at under 9 to 1.

I bet the 7.3 comes in right around 500 and will be a great motor. Just because it's a 2 valve pushrod motor doesn't mean it can't make power. Think GM and Dodge have shown pushrod motors are still viable in some applications.

Takeda

I'll give it to you, you found one! Another advantage of DOHC, you can vary overlap for low end torque, and high RPM HP.You can't vary overlap with a single cam. Not only does 2V limit breathing, but pushrods limit the size of the head intake ports.