Build a 572 or....
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Build a 572 or....

  1. #1
    Senior Member Jim W's Avatar
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    Default Build a 572 or....

    I have a chance to buy a Donovan D block, 4.500 bore along with a set of AFR 357 CNC heads. Can also get the Howard's crank that was in it. Crank is turned .010--.010. I believe the crank starts as either a Callies or Trick Flow??? Rods are Eagle with the L/19 bolts, don't know the length. The pistons are low compression and I am going high compression.

    I wouldn't mind getting a new crank and rods. What's the cubic inch limit for the 357 CNC heads??

    Basic build will be.....
    1963 Nova mainly a street car but a few trips to the track. Single dominator carb on a ported intake, Solid roller cam from CStraub, T&D rockers, 13 or 14ish compression running E-85 with a max RPM of 7,500.

    So, I can stay with the 572 or go up to a 598--615--632 but, I want to keep the heads matched to what I am trying to do.
    Your thought's?????

    Thanks, Jim
    GN7
    Do you guys ever read anything I post, or just go straight for the throat?


    Got it wet on 6/15/10-------->finally......



    E-85 I'm saving the world--->8 thumps at a time

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  3. #2
    steelcomp was here
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    Jim, if you keep the rpm reasonable, (and 7500 is sort of reasonable) you can go pretty big with those heads. Send me some flow numbers if you have them and we can go from there.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

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    steelcomp was here
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    Hold the phone...I have a flow sheet here form a set I did for a customer. It's good, too, because it's not what AFR says it is...go figure.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

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  6. #4
    415 M3
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    In my opinion the 572 will be more than enough for a street car that will see the track on a limited basis. That is a very light car with a big motor. Your going to have to do something to tame the torque down low or spend some money on the suspension. Sounds fun.

  7. #5
    Senior Member Jim W's Avatar
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    Quote Originally Posted by steelcomp View Post
    Hold the phone...I have a flow sheet here form a set I did for a customer. It's good, too, because it's not what AFR says it is...go figure.
    LOL OK Holding.......

    I don't have flow numbers and don't know if the owner does????

    From lot's of reading, I am leaning tward's a 615 4.60 X 4,625 It's a 10.2 block by the way.

    Jim
    GN7
    Do you guys ever read anything I post, or just go straight for the throat?


    Got it wet on 6/15/10-------->finally......



    E-85 I'm saving the world--->8 thumps at a time

  8. #6
    steelcomp was here
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    Quote Originally Posted by Jim W View Post
    LOL OK Holding.......

    I don't have flow numbers and don't know if the owner does????

    From lot's of reading, I am leaning tward's a 615 4.60 X 4,625 It's a 10.2 block by the way.

    Jim
    PM sent.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

  9. #7
    Cantard 71hallett's Avatar
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    Quote Originally Posted by Jim W View Post
    LOL OK Holding.......

    I don't have flow numbers and don't know if the owner does????

    From lot's of reading, I am leaning tward's a 615 4.60 X 4,625 It's a 10.2 block by the way.

    Jim
    Hope you think its going to be enough!!!

    Carry on.
    Quote Originally Posted by gn7 View Post
    It would be a balmy 85* in Steel's shop if he would move a little faster

  10. #8
    Cantard 71hallett's Avatar
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    Just my .02 but a 588 always seems to have made a happy motor.
    Quote Originally Posted by gn7 View Post
    It would be a balmy 85* in Steel's shop if he would move a little faster

  11. #9
    Senior Member Factory1's Avatar
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    Myself and my good friend Tony are both very pleased with our 572's, but they are Mopars. If you were to get an easliy obtainable 1.5hp per cubic inch, the 615 would be worth 65hp over the 572, provided you had enough head to support it. What you are looking at is an extreme torque monster, 800ft/lbs plus, in you light weight little car. I take it you plan on tubbing the car and installing a 4 link out back? I have a 493"er with Edelbrock RPM heads, 10.5:1, solid cam in a much bigger, heavier 69 Dodge Coronet R/T, and it blows 10" meats off of it to about 60mph in third. For a toy car that will see very little track time, I think your decision to run high compression and race gas will get old really quick, and limit the cars milage unless you are very rich. P.S. I wouldn't run Eagle rods with that much motor unless your goal is to ventilate the block!

  12. #10
    Senior Member Jim W's Avatar
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    Quote Originally Posted by 71hallett View Post
    Hope you think its going to be enough!!!

    Carry on.
    That's why I am asking.
    Could always spray it with a 100-200 shot but, would rather do it motor only.

    Gunslinger,
    have a 496 with low 600 HP in the Nova now and it's a bit of a handful for the first 100' or so. I want to make it a handful going all the way up to third gear. I like the game that can be played back and forth by the car and the driver. Hmmmmm I guess I could always put on a set of 165-75-15's on the rear

    Jim
    GN7
    Do you guys ever read anything I post, or just go straight for the throat?


    Got it wet on 6/15/10-------->finally......



    E-85 I'm saving the world--->8 thumps at a time

  13. #11
    Senior Member Jim W's Avatar
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    Quote Originally Posted by Factory1 View Post
    Dodge Coronet R/T, and it blows 10" meats off of it to about 60mph in third. For a toy car that will see very little track time, I think your decision to run high compression and race gas will get old really quick, and limit the cars milage unless you are very rich. P.S. I wouldn't run Eagle rods with that much motor unless your goal is to ventilate the block!
    F1, in a friendly response,
    you are in third gear at 60 MPH???

    I am not running race gas. The car is on E-85 for a cost per gallon around $1.99. Pretty much drive the car once or twice a week for a 10-15 mile loop and beat the snot out of it the whole way.

    71Hallett has a friend making 1,600 HP (turbo) for a few years now with the Eagle rods.

    Personally, I love a torque monster in a light car!!!

    Jim
    GN7
    Do you guys ever read anything I post, or just go straight for the throat?


    Got it wet on 6/15/10-------->finally......



    E-85 I'm saving the world--->8 thumps at a time

  14. #12
    steelcomp was here
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    Heads are going to be the limiting factor at that c.i./rpm, but still, 400cfm should make 900 or so. I wouldn't worry about the Eagles, especially with the L19's. They're GTG. Keep the 600ci at or below 7000... you're still going to need 400cfm to make 900hp. That's asking for a BIG cam with those heads. Might need a little more air.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

  15. #13
    Senior Member Jim W's Avatar
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    Quote Originally Posted by steelcomp View Post
    Heads are going to be the limiting factor at that c.i./rpm, but still, 400cfm should make 900 or so. I wouldn't worry about the Eagles, especially with the L19's. They're GTG. Keep the 600ci at or below 7000... you're still going to need 400cfm to make 900hp. That's asking for a BIG cam with those heads. Might need a little more air.
    I kinda like these.......

    http://www.raceflowdevelopment.com/R...ock-victor.htm

    Jim
    GN7
    Do you guys ever read anything I post, or just go straight for the throat?


    Got it wet on 6/15/10-------->finally......



    E-85 I'm saving the world--->8 thumps at a time

  16. #14
    Senior Member Factory1's Avatar
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    Quote Originally Posted by Jim W View Post
    F1, in a friendly response,
    you are in third gear at 60 MPH???

    I am not running race gas. The car is on E-85 for a cost per gallon around $1.99. Pretty much drive the car once or twice a week for a 10-15 mile loop and beat the snot out of it the whole way.

    71Hallett has a friend making 1,600 HP (turbo) for a few years now with the Eagle rods.

    Personally, I love a torque monster in a light car!!!

    Jim
    Yes I am in third at 60mph, it's a 4spd car with 3.91's. I don't mean to disrespect Eagle products, I have used them myself with good success, but you have to realize in the high end aftermarket parts industry, they are entry level, and have their intended uses and limitations. The more hp and torque you will make with a BIG motor the closer you will get to their threshold. Higher rpm's as well will tax them. The only reason they are standing up to the 1,600hp would be the turbo in my opinion, if it was 1,600 roots blown, those rods would be fragmented. They are a inexpensive copy of a Carillo, and wouldn't be my choice for that type of power.

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