572 bbc
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572 bbc

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    Default 572 bbc

    What iron block would you guys build a 572 around?

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    Some guy obnoxious001's Avatar
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    Quote Originally Posted by drc9805 View Post
    What iron block would you guys build a 572 around?
    You may get a variety of answers, but I like the Dart Big M blocks. Your intended usage may help dictate if you want or need billet main caps, or if the cast will be fine.

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    Dart Big M
    You were quicker on the post button

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    Senior Member Bubbletop409's Avatar
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    Big M is the foundation for my 565, nice piece.
    Larry

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    When I was considering going to a new block and more inches two different machine shops said Big M block, they both said they liked working with them.

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    I'm running a 565" Merlin right now but I think the dart castings are better. Jmo.

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    Thanks guys! The Big M is the block I have been looking at so it's good to see you all are recommending it. I want to build a strong 572 for a jet boat with a forged crank, forged H-beam rods, hydraulic roller cam, aluminum heads, and somewhere between 10 to 11:1 compression. I've searched turnkey packages and I think the highest hp numbers I've seen claimed are about 790 hp. I think the cams had around .640 lift and the heads flowed around 400 cfm. The hp numbers seem high to me but the lowest number I saw quoted with similar packages to what I would like to build was 750 hp. I would love to keep it on 91 pump gas but I also would like it to be no less than 700 hp. Is this a possibility at all? Are any of the big shops you find on the net offering these turnkey packages building a quality engine with top of the line parts? I've looked at several but the only names I can remember off the top of my head are URE and Proformance Unlimited.

    Please feel free to offer your suggestions regarding a build either here or through private messaging. I used to help my dad assemble engines he would put together but I've never came up with my own combo on my own. Heck, I got stumped right off the bat with a standard deck height or tall deck... lol!

    If anyone knows of a great quality 572 that is currently running for sale where a guy could save a lot of money... that would be awesome too.

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    steelcomp was here
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    It's going to be all about your budget but a pump gas 565/572 with a hyd. roller should make well into the 800hp range and be completely reliable. Did a pump gas 565 last year that made over 900 with a single dominator carb. It's all in what you're willing to spend. Start with a Dart block, I'd go Scat crank, Eagle, Scat, K1, Molnar...any of the good import rods will be fine, Mahle pistons and rings, heads in the 350cc range like the Brodix BB3CNC or the Dart 355, and if you want some extra power go with a newer design tunnel ram and a pair of 1050's and a custom cam for the combination. Guaranteed mid 800hp on pump gas.
    If God is your co-pilot, change seats!
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    Village Idiot fc-Pilot's Avatar
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    Quote Originally Posted by scott foxwell View Post
    It's going to be all about your budget but a pump gas 565/572 with a hyd. roller should make well into the 800hp range and be completely reliable. Did a pump gas 565 last year that made over 900 with a single dominator carb. It's all in what you're willing to spend. Start with a Dart block, I'd go Scat crank, Eagle, Scat, K1, Molnar...any of the good import rods will be fine, Mahle pistons and rings, heads in the 350cc range like the Brodix BB3CNC or the Dart 355, and if you want some extra power go with a newer design tunnel ram and a pair of 1050's and a custom cam for the combination. Guaranteed mid 800hp on pump gas.
    I would work with Scott. ^^^^^^^ There are a number of guys out there that can build great stuff, but he is a great resource and he works with Chris who can get you good deals on any parts you might need as well as a great custom cam to get you the power you want. Great team there. I don't like to stroke to many peoples egos, but they have earned a great reputation for a reason.

    Paul

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    Quote Originally Posted by scott foxwell View Post
    It's going to be all about your budget but a pump gas 565/572 with a hyd. roller should make well into the 800hp range and be completely reliable. Did a pump gas 565 last year that made over 900 with a single dominator carb. It's all in what you're willing to spend. Start with a Dart block, I'd go Scat crank, Eagle, Scat, K1, Molnar...any of the good import rods will be fine, Mahle pistons and rings, heads in the 350cc range like the Brodix BB3CNC or the Dart 355, and if you want some extra power go with a newer design tunnel ram and a pair of 1050's and a custom cam for the combination. Guaranteed mid 800hp on pump gas.

    Scott, thanks for the info! The budget may shatter all my hopes. I love your signature line

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    Quote Originally Posted by fc-Pilot View Post
    I would work with Scott. ^^^^^^^ There are a number of guys out there that can build great stuff, but he is a great resource and he works with Chris who can get you good deals on any parts you might need as well as a great custom cam to get you the power you want. Great team there. I don't like to stroke to many peoples egos, but they have earned a great reputation for a reason.

    Paul
    Thanks Paul! I know there has to be some very good engine builders on this site but I haven't been here long enough to know who they are.

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    ptc
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    Quote Originally Posted by scott foxwell View Post
    It's going to be all about your budget but a pump gas 565/572 with a hyd. roller should make well into the 800hp range and be completely reliable. Did a pump gas 565 last year that made over 900 with a single dominator carb. It's all in what you're willing to spend. Start with a Dart block, I'd go Scat crank, Eagle, Scat, K1, Molnar...any of the good import rods will be fine, Mahle pistons and rings, heads in the 350cc range like the Brodix BB3CNC or the Dart 355, and if you want some extra power go with a newer design tunnel ram and a pair of 1050's and a custom cam for the combination. Guaranteed mid 800hp on pump gas.

    Scott I guess Im at a loss.... But SCAT states they are:

    INNOVATION SCAT

    with its team of dedicated engineering professionals has complete in-house engineering and programming capability, using only state-of-the art technology

    QUALITY SCAT’s

    quality is the best in the business. We use state of the art manufacturing equipment . . . we travel the world to purchase the finest castings, forgings and billet materials . . . we utilize only the most innovative and *sophisticated heat treat processes . . . we have personnel dedicated to constant research and development to ensure we employ only state-of-the-art technology to developing the highest quality and most reliable parts in the automotive aftermarket

    MANUFACTURING CAPABILITY SCAT

    has a 42,000 square foot manufacturing and distribution facility in Redondo Beach, California, U.S.A., home to over 70 major pieces of equipment including CNC machines, rod honing machines, crankshaft grinding and polishing machines


    So dont they do all the machining processes in-house in SOCAL? they only buy forgings and castings that are imported as do many others?
    1975 Sanger True Flat - 496 BBC
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    Quote Originally Posted by ptc View Post
    []So dont they do all the machining processes in-house in SOCAL? they only buy forgings and castings that are imported as do many others?
    I happened to call them yesterday, since someone on another forum commented that their parts were not from China. I got very straight answers that the forgings do come from China, and they machine in house.

    If you look on their webpage, there is a video of the shop and some of the various machining processes.

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    How much pump gas power do you want? Keeping with a 4.25" stroke and building a 565 CID in a std deck is a much better combination for a pleasure boat. A good pump gas engine will make 1.5HP per cube so going from a 572 to a 565 will cost you 10.5HP. You will never feel the loss.
    Chris Straub
    Straub Technologies

    3HP is an A$$ Whooping!!! JW

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