A-460 block

I've got a standard head bolt pattern a-460 block how hi can it be bored and stroked safely and how much power can it handle? I'm at 4.5 & 4.5

4.625b and 4.75s IIRC, but probably more stroke with unobtainium rods and a pile of machine work.

jason wrote:I've got a standard head bolt pattern a-460 block how hi can it be bored and stroked safely and how much power can it handle? I'm at 4.5 & 4.5

Should go 4.600" bore with ease,if I remember correctly, Ford said 4.6250" back in the day, probably could go more with a sonic check. With some clearancing, you can go 4.750" stroke.

I'm currently running an A460 block with a 4.650" bore and a 4.750" stroke with no problems. A sonic check is a good idea because some blocks experience core shifting in the casting process.

What about the horsepower capability?I've heard dif. Things.

jason wrote:What about the horsepower capability?I've heard dif. Things.

What are your build plans? I doubt you'll exceed the blocks capabilities...

Nevs wrote:

jason wrote:What about the horsepower capability?I've heard dif. Things.

What are your build plans? I doubt you'll exceed the blocks capabilities...

Twins through a carb

jason wrote:

Nevs wrote:

jason wrote:What about the horsepower capability?I've heard dif. Things.

What are your build plans? I doubt you'll exceed the blocks capabilities...

Twins through a carb

How much boost with the twins? I'd consider an 18 bolt block and heads in a twin turbo application. N/A, I'd run what you have, but that does put a different spin on things with the twins...

twins with pretty much any head you throw on it will make well over 2000hp. That will put you in the mid to low 7's with ease. now if you want to dial it down for say like 7.50's or slower you will not need that much boost and the 10 bolt block will be fine. I personally would use the 18 bolt block but as long as you never plan on running a lot of boost and you are able to keep your tune safe (lots of time with a carb) you will be fine with what ever you want to throw at it.

I would be happy with 7.50 to 8.00's like I said the chivy guys here with twin 88s are running 8.70's, and I don't have the cash for an 18 bolt block and heads right now .

jason wrote:I would be happy with 7.50 to 8.00's like I said the chivy guys here with twin 88s are running 8.70's, and I don't have the cash for an 18 bolt block and heads right now .

Twin 88's on a combo like yours should make around 1200-1300 rwhp at 10-11psi.

Thanks for all the input guys , now I have something to shoot for . One more question if I were to go injection what's a good system without breaking the bank??