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Lots of good info posted (and some bench racing, and bickering).

IMO, if you keep it to 800 hp and stay away from the nitrous it will last a reasonable amount of time. But you have to find a block with good cylinders and change the main caps, and a girdle would fit your needs. A 511 CID is all you need (4.250" stroke, 4.375" bore).

But I can't argue with the benefit of spending $1000 more and having a World Products (MP) block.

$ 250 a good sonic checked 400 block (might cost more to find 1 of 7)
$ 400 normal machine work (bore, hone, deck, clean, etc).
$ 375 Aluminum main caps
$ 400 Machine and fit main caps
$ 200 ? Girdle
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$1625

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Caps and Girdle from BCR is $800+ shipping.
440 Source Girdle is $279 Which include bolts.

So lets do some Math..
Say you locate a good "230" Block and get it for a steal at $200.

So..
-$200 Block
-$800BCR main girdle cap package
-$1625 for basic machine work as Jim Posted.
-$90 for Hard Block
-Say you have another $150 for additional labor, cam bearings installed, mag'n, stroker clearance, hard block filling etc

Now we have $2865 in this near 40 year old block.
Even if you had the block, and didnt inquire additional labor.
Thats still over $2500..
It doesnt make sense to have this money in a stock block, only to have it split a cylinder 3 seasons down the road and trash the whole engine..

IMO Girdle's, aluminum main caps, nor hard block seem to keep a block from splitting cylinders. I know this as pure fact not speculation.

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I really can't believe all of you have never built a decent motor making around 600 hp. And you think that a tall fill, aluminum caps, main girdle, and the likes is required to make another 150-200? Gimme some of that stuff you're smoking!

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I really can't believe all of you have never built a decent motor making around 600 hp. And you think that a tall fill, aluminum caps, main girdle, and the likes is required to make another 150-200? Gimme some of that stuff you're smoking!

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Fire it up and pass it this way, if you think "another 150-200hp" doesnt add stress to a stock block thats already at 600hp. Your 493 cube'd Template ported 906's that have shift point at 5700 rpms, is pretty diff from a B1 engine.
You guys do what you want, but seems about once a week or so someone is posting up blocks that has gave up the ghost..

were not talking about 493 inch enignes that has home ported Edelbrock RPM heads here.
Were talking about a stroker engine with B1's that doesnt seem to respond well to 6500 rpm shift points.
If turning a stock block 7400-7800 rpms doesnt seem to bother you, then go right ahead. I have built and run engine at this caliber. And the large head B1 heads like RPM.

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Your right my 8,200 shifts and 8.70s in a 3,500lbs car is not a cookie cutter.I agree 100% that a new block is the best,but if a guy has a A-body or like me never had that kind of money a stock 400 block will do.My A$$ puckers every run I've made in my life,but it beat the hell out off typing about racing on the computer.Lenny

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MotherF----- I have done it.I done it 10 Damn years ago.I am stll doing it.I did not sit on a computer asking people how to,I was out there beating on parts.No I'am not John Fing Force But damn I Have built some bad A$$ cars with only the little bit of money I had.

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Why do you want to curse people for? cause we actually have a good debate, and you disagree with some statements and opinion given?
Dude you have some personal issue's.
We all get how we have slow cars, and everyone else with there 11 second car questions just gets under your skin. and for us to you ask dumb questions on this web site which just seem to be trivial to you, may have merit non the less. We all know how great you are, and how fast all your cars is, you tell us in every post BTW.
You never provide any useful info, other than to sling garbage, and sling mud on people. If you dont like it here, or the people, simply go away. I betting people wont care.

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MotherF----- I have done it.I done it 15 Damn years ago.I am stll doing it.I did not sit on a computer asking people how to,I was out there beating on parts.No I'am not John Fing Force But damn I Have built some bad A$$ cars with only the little bit of money I had.

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