Witnessed 049 heads being flowed!
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Witnessed 049 heads being flowed!

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    Default Witnessed 049 heads being flowed!

    I had the opportunity to watch an engine builder here in Colorado Springs flow a set of 049 heads. The heads have 2.19s and 1.88s and were ported by Mark Jones aka vortec pro. I heve never seen this so this is pretty neat stuff to me. His mid lift numbers were great. 294 cfm @ .400, 330 @ .650 on a super flow bench at 28" He can get a set of 049s to flow over 350cfm. I know just about everyone on here runs aluminum but its pretty cool to see a 700 horse iron bbc with 049 heads.
    Last edited by jungledave; 12-27-2008 at 12:22 PM. Reason: grammar

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    Boat Nut sleekcrafter's Avatar
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    It's amazing what these porting guys can do, many learn the skills when building engines for CID/OEM limited class racing.

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    Quote Originally Posted by sleekcrafter View Post
    It's amazing what these porting guys can do, many learn the skills when building engines for CID/OEM limited class racing.
    What is confusing is what he does with the short side radius. It isn't consistant for one side of the port to the other. It kinda rolls oposite of the valve angle. Of corse the good and bad ports are done completely different. The port isn't that big either. He joked about building an 800 HP motor with 049 heads, I know he has gone over 750 already. The ovals work great in our altitude.

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    Mark at Vortecpro does some nice work. The 049's can be made to make some good power. . .in excess of 700HP, but to do this the port work and labor is generally in the $1000's to do so which for most would put you in the aftermarket catagory for heads. Now building a 500HP or so 496 for a sub 6400 rpm build, the 049's rock.
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    Just another Wannabe Wannabe's Avatar
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    The 049's are very under-rated heads. They can make good power with just clean up stuff and a little bigger valve. Good velocity, good mid lift stuff. And then you get a guy that knows what he is doing, they can really work.

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    What Mark's done is imoressive to say the least, but really impractical on the normal level of 049 application. Wannabe and Chris are correct in that setting up a set for medium power/rpm is relatively easy and inexpensive, adn a good use for those heads. Otherwise, going aluminum would be way more cost effective.
    I'm waiting on the Holiday break to be over so I can order some cutters I need to finish the ones I'm doing. They'll be a good example of a cost effective performance 049 build.
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    Quote Originally Posted by steelcomp View Post
    What Mark's done is imoressive to say the least, but really impractical on the normal level of 049 application. Wannabe and Chris are correct in that setting up a set for medium power/rpm is relatively easy and inexpensive, adn a good use for those heads. Otherwise, going aluminum would be way more cost effective.
    I'm waiting on the Holiday break to be over so I can order some cutters I need to finish the ones I'm doing. They'll be a good example of a cost effective performance 049 build.
    I agree on the aluminum part, but a 700+hp 10.2 Iron headed 496 with only a .650 lift roller is still damned impressive. I understand how much more important the mid lift flow numbers are compared to total lift numbers. This guy does two sets of these a week. I don't get to build motors every day like a lot of ya out there and this is just cool stuff!

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    Quote Originally Posted by jungledave View Post
    I agree on the aluminum part, but a 700+hp 10.2 Iron headed 496 with only a .650 lift roller is still damned impressive. I understand how much more important the mid lift flow numbers are compared to total lift numbers. This guy does two sets of these a week. I don't get to build motors every day like a lot of ya out there and this is just cool stuff!
    Uh...got my attention...details man, details!
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    Im fairly certain its not 10.2 compression. More like 13. And Im guessing a little more cam.

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    Because the air is thinner in Colorado.....is there any correction factor for the flow #'s needed at altitude? Mostly curious.

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    Default 049

    I have a set of these heads ported w/roller springs- ti ret 2.25 x1.88 and run them on a 496 roller motor and they are awsome. But for the money i spent on these i could of bought aluminum heads and lost 80 lb.s on the ass end of my boat

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    Default e/m mag

    also is this staight out of the lastest engine masters mag?

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    Quote Originally Posted by MikeF View Post
    Because the air is thinner in Colorado.....is there any correction factor for the flow #'s needed at altitude? Mostly curious.
    if your asking if atmosphereic pressure is taken into consideration when calculating flow?, the answer is yes



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    Quote Originally Posted by flat601 View Post
    I have a set of these heads ported w/roller springs- ti ret 2.25 x1.88 and run them on a 496 roller motor and they are awsome. But for the money i spent on these i could of bought aluminum heads and lost 80 lb.s on the ass end of my boat
    I think, depending on what you want, some $$$ can be spent tweaking the factory iron and be ahead of the game.

    Need really wholesale changes and LOTS of porting, and you need to start off with a different head IMO.
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