VV--- Ignore that, I was tired and misread some information ---VV
OK, let me start out by saying, I'm in no way a mechanic, but I have a pretty good understanding of mechanical science. I'm having a little trouble understanding the main differences between grabbing a lower end out of an f150 and buying a stroker kit from ssms or something of the like.
From what I've seen, the v6 in the mustang and v6 f150 are the same motor (essex v6), both have the same bore, so, it would seem, you just take the crank, rods and pistons out of the f150 (or alternatively, take the block, since it is the same) and slap your top end on, and you have a 4.2. The thing is, the 03-04 mustangs make 190hp, and the f150 4.2 makes 203 or something like that, so that's a 13hp gain.
Now, ssms claims that their stroker kit will increase up to 90hp, and all they include is the crank, rod, and pistons as well. They also advertise their kit as a 4.3 "long rod" kit.
Now, I'm assuming since the cylinder is the same size regardless, the pistons are shorter for the extra .1l of displacement, but where does the extra 77hp over the f150 come in? surely not from the extra tenth of a liter of displacement.
I'm assuming the longer rods, which would put the displacement range farther up in the cylinder, makes more compression, which leads to more hp since the amount of space displaced is at a larger percentage to the total space of the cylinder over stock?
In short, I'm curious why it seems the 4.2 f150 lower end only makes 203hp, but smss stroker kit can make 280. As I said, I'm not a mechanic, so I'm really just trying to learn this stuff and rationalize concepts with my pretty basic mechanical knowledge (not to mention it is 2:30am), so I could be waaaay off track. Any info would be greatly appreciated.
OK, let me start out by saying, I'm in no way a mechanic, but I have a pretty good understanding of mechanical science. I'm having a little trouble understanding the main differences between grabbing a lower end out of an f150 and buying a stroker kit from ssms or something of the like.
From what I've seen, the v6 in the mustang and v6 f150 are the same motor (essex v6), both have the same bore, so, it would seem, you just take the crank, rods and pistons out of the f150 (or alternatively, take the block, since it is the same) and slap your top end on, and you have a 4.2. The thing is, the 03-04 mustangs make 190hp, and the f150 4.2 makes 203 or something like that, so that's a 13hp gain.
Now, ssms claims that their stroker kit will increase up to 90hp, and all they include is the crank, rod, and pistons as well. They also advertise their kit as a 4.3 "long rod" kit.
Now, I'm assuming since the cylinder is the same size regardless, the pistons are shorter for the extra .1l of displacement, but where does the extra 77hp over the f150 come in? surely not from the extra tenth of a liter of displacement.
I'm assuming the longer rods, which would put the displacement range farther up in the cylinder, makes more compression, which leads to more hp since the amount of space displaced is at a larger percentage to the total space of the cylinder over stock?
In short, I'm curious why it seems the 4.2 f150 lower end only makes 203hp, but smss stroker kit can make 280. As I said, I'm not a mechanic, so I'm really just trying to learn this stuff and rationalize concepts with my pretty basic mechanical knowledge (not to mention it is 2:30am), so I could be waaaay off track. Any info would be greatly appreciated.
