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Thread: heads

  1. #1
    Junior Member SHOW GUEST
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    Mar 2005
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    4

    heads

    call bmf a divison of cfe. that's truly the best head on the market. My experience with the sb2.2 head is unless the power adder is flowing the head has bad qualities, or if you are turning it hard and it stays up in the rpm then it's good.

  2. #2
    Senior Member SENIOR BUILDER
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    Sounds like the SB2.2 experience you had was with old used nascar
    stuff trying to make it work for something it wasn't built for.
    A properly designed sb2.2 built for drag racing will kick butt, ..
    notice all of them being run in comp, .. I have some 900+hp
    engines out there with cast single 4, .. ..

    Curtis
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    Race Flow Development
    Simultaneous 5-axis CNC Porting
    http://www.raceflowdevelopment.com

  3. #3
    Senior Member MASTER BUILDER
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    I agree on the SB heads,our house 420 ci.in. super late model dirt car must pull from 4000 rpm on restarts so we cant cam them like a drag race engine.this engine makes 844 H.P. with 691 lbs torque. the same combination with a larger cam and carb makes well over 900 H.P. Bill
    Hendrens Racing Engines
    1310 U.S. Hwy 221 North
    Rutherfordton N.C. 28139
    828-286-0780 Bill, Steve, Mike
    www.hendrensracingengines.com

  4. #4
    Senior Member SENIOR BUILDER
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    Quote Originally Posted by billhendren
    I agree on the SB heads,our house 420 ci.in. super late model dirt car must pull from 4000 rpm on restarts so we cant cam them like a drag race engine.this engine makes 844 H.P. with 691 lbs torque. the same combination with a larger cam and carb makes well over 900 H.P. Bill
    Bill,

    Are you using SB2.2's on your super late model?

    Curtis
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    Race Flow Development
    Simultaneous 5-axis CNC Porting
    http://www.raceflowdevelopment.com

  5. #5
    Junior Member JOURNEYMAN
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    Yes he is.No one uses the older SB2 stuff its not any better than the 18* stuff and stuff to fit them are very hard to find.

  6. #6
    Senior Member MASTER BUILDER
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    Rutherfordton North Carolina
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    Yes we are,the current head is a 5C Hendrick its about 6 years old with a 286 c.c. int.we also have run the 8C which has a 322 c.c. runner but was down on torque.we just got the latest 10C which is 300 c.c. with a laid back combustion chamber but haven't had the time to test it.Bill
    Hendrens Racing Engines
    1310 U.S. Hwy 221 North
    Rutherfordton N.C. 28139
    828-286-0780 Bill, Steve, Mike
    www.hendrensracingengines.com

  7. #7
    Senior Member SENIOR BUILDER
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    perfconn, .. yea I know the 1st gen sb2's aren't run anymore, ..
    I was asking if he was running a sb2.2 or a wedge cause his post
    wasn't clear in that regard.

    Bill,

    I've got a few hedricks sets in the shop, .. I'll have to look and see
    if they are 8c, 10c etc.

    Also just had a set of JGR 2007 open heads here.
    Ports where very close to the open head I build, .. as well as some
    of the drag / comp eliminator stuff.

    Just finished a 13.5* wedge port set, ..
    Brodix GB series 13.5* head.

    2.2" intake 1.58" ex, 298cc intake, 2.9 csa.

    lift - Int - Ex
    .2 - 151.3 - 109
    .3 - 226.7 - 162
    .4 - 293.6 - 202
    .5 - 353.8 - 241
    .6 - 396.3 - 252
    .7 - 416.1 - 258
    .8 - 422.4 - 261

    Curtis
    ----------------------------------------
    Race Flow Development
    Simultaneous 5-axis CNC Porting
    http://www.raceflowdevelopment.com

  8. #8
    Senior Member RACING JUNKIE mytmouz's Avatar
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    977
    Mind if I ask what a set of those run? :shock:

  9. #9
    Senior Member SENIOR BUILDER
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    Quote Originally Posted by tporter
    Mind if I ask what a set of those run? :shock:
    $3800 bare, ..

    Curtis
    ----------------------------------------
    Race Flow Development
    Simultaneous 5-axis CNC Porting
    http://www.raceflowdevelopment.com

  10. #10
    Also just had a set of JGR 2007 open heads here.
    Ports where very close to the open head I build, .. as well as some
    of the drag / comp eliminator stuff.
    How did you get your hands on those?


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