Desktop dyno and big block 454 heads.....

[Zeus33rd]

So I'm playin with Desktop Dyno,and have pretty much everythign figured out and dialed in except for the heads. My motor has the "peanut port" heads. Oval port. I don't know which of the availble selctions most closely match my heads. Here's apicture of the avaialbe choices-

My best guess was the Canted/Oval Stock ports, Stock Valves. Am I way off base? It seems to make good torque numbers....Nice and flat from under 2k rpms to 4500.

Anyways....Who's got a clue? I sure don't..

 

[Hogback Fabrication]

Do you know the casting #'s of your heads? The only way you will get any kind of accurate estimate is to use the custom port flow option. Search google for flow numbers for your heads and enter them into there (Desktop Dyno probably has your heads already in its database).

 

[Zeus33rd]

Yeah, I know the casting number-

14092360...86-90...oval...OPEN...454 Truck, "peanut" round ports

2.06 intake, 1.72 exhaust

What exactly would I Google for?

 

[beastofablaze]

yup... everyone that bitches about the desktop dyno being way off needs to use the custom port flow feature.

 

[wicked jester]

These should get you close.

 

[Hogback Fabrication]

^^^ Those aren't the same heads. I couldn't find flow numbers for the 14092360 heads but what wicked jester posted is what you are looking for.

 

[Zeus33rd]

Right on!

Thanks.

 

[Zeus33rd]

Ok, entered the numbers wicked jester posted and made a small cam change-

Definatley not a screaming mud or street type motor, but a good for a daily driver I think.

 

[beastofablaze]

Ok, entered the numbers wicked jester posted and made a small cam change-

Definatley not a screaming mud or street type motor, but a good for a daily driver I think.

yeah... only 470 ft lbs at 2500... boo hoo...