400
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The 400 has a 4" bore, 4" stroke configuration.
How it fits into GM BB/SB terms is...... it's considered a small block.
For more info about the 400 ...Maybe head for the 335 engine series forum as this Topic/Question has really nothing to do with the Trucks ?
It's an engine question
Or maybe Jimmy will move this thread to its proper place ?
How it fits into GM BB/SB terms is...... it's considered a small block.
For more info about the 400 ...Maybe head for the 335 engine series forum as this Topic/Question has really nothing to do with the Trucks ?
It's an engine question
Or maybe Jimmy will move this thread to its proper place ?
Last edited by Mil1ion; Jun 11, 2006 at 11:05 PM.
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From: Evanston, WY
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You do not want to build a motor for 500 HP in a truck. You should build it for high low end torque and a broad flat torque curve.
To get 500 HP you need a cam with a lot of duration. This will kill the torque at low RPM. A light Mustang can get away with this, but a heavy vehicle needs that torque.
The best combos use 9:1, or 9.5:1 compression ratio, with moderate duration high lift hydraulic roller cams, ported or alloy heads for great head flow, headers, a good intake manifold with a 600 CFM carb.
There are many examples of what others have built or are building on this forum. Our sponsor Tim Meyer has some great parts to build this motor.
But i figure since it has a 4" stroke that with 500HP i would have a ton of torque, wouldnt I?
To get 500 HP you need a cam with a lot of duration. This will kill the torque at low RPM. A light Mustang can get away with this, but a heavy vehicle needs that torque.
The best combos use 9:1, or 9.5:1 compression ratio, with moderate duration high lift hydraulic roller cams, ported or alloy heads for great head flow, headers, a good intake manifold with a 600 CFM carb.
There are many examples of what others have built or are building on this forum. Our sponsor Tim Meyer has some great parts to build this motor.
But i figure since it has a 4" stroke that with 500HP i would have a ton of torque, wouldnt I?
Last edited by 78FordF2504X4; Jun 12, 2006 at 04:46 PM. Reason: Messed up
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You can build an engine to favor torque or horsepower. These are very general figures. Do you want an engine with 500hp and 450tq or do you want 450hp and 500tq? Do you want a Hot Rod with bragging rights to show off or do you want something to enjoy as a daily driver with respectable gas mileage? It all depends on how fat your wallet is and how you're going to use it.
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From: Evanston, WY
Well since i plan to use it as an advertisment for my buiness, gas mileage is not a big concern. i drive it around right now and only get 8-10 mpg as it is. so gas mileage is not a big deal for me, but i guess now that ive read all this, i want a high torque engine with moderate hp. because still with 500hp and 450tq my truck would be a hell of a truck out on the street. sorta like a sleeper right?
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