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Dart Speed Flow Cylinder Heads?

This is a discussion on Dart Speed Flow Cylinder Heads? within the Internal Engine forums, part of the LSx Technical Help Section category; anyone know if these are a good set?...

  1. #1

    Dart Speed Flow Cylinder Heads?

    anyone know if these are a good set?

  2. #2
    How much better are these than the stock heads on my 00' A4 ss

    Dart Cylinder Heads:

    Cylinder Head Style: Assembled
    Cylinder Head Material: Aluminum
    Cylinder Head Finish: Natural
    Combustion Chamber Volume (cc): 62
    CNC Machined Combustion Chamber: No
    Intake Runner Volume (cc): 205
    CNC Machined Intake Runner: No
    CNC Machined Exhaust Runner: No
    Combustion Chamber Style: Heart
    Intake Port Location: Standard
    Exhaust Port Location: Standard
    Intake Valves Included: Yes
    Intake Valve Diameter (in): 2.020
    Exhaust Valves Included: Yes
    Exhaust Valve Diameter (in): 1.600
    Valve Springs Included: Yes
    Outside Diameter of Outer Spring (in): 1.290
    Damper Spring Included: No
    Number of Springs Per Valve: Single
    Retainers Included: Yes
    Retainer Material: Steel
    Locks Included: Yes
    Lock Style: 7 degree
    Valve Stem Seals Included: Yes
    Valve Stem Seal Style: PC seal
    Rocker Arm Studs Included: No
    Rocker Arms Included: No
    Rocker Arm Nuts Included: No
    Guideplates Included: No
    Valve Cover Mounting Style: Centerbolt
    Accessory Bolt Holes Drilled: Yes
    Valve Guides Included: Yes
    Valve Guide Material: Manganese bronze
    Valve Seats Machined: Yes
    Valve Seat Machine Style: 4-angle intake/2-angle exhaust
    Valve Seat Material: Powdered metal
    Steam Holes Drilled: No
    Oiling Style: Through head
    Machined for O-Ring: No
    Heat Crossover: No

  3. #3
    member since may 2000 nhraformula's Avatar
    Join Date
    Dec 2002
    n/w chicago

    2000 nhra edition formula

    the darts are good.
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  4. #4
    Awaiting Activation NeeD4SpeeD's Avatar
    Join Date
    Sep 2005
    New York, NY

    Collectors Edition Yellow
    2002 Pontiac Trans AM WS6

    I've heard mixed opinions about dart heads....

  5. #5
    Junior Member
    Join Date
    Jan 2006

    1998 Pontiac Trans Am

    Anymore opinions??? Thinking on going with the Dart Heads and just want to know if they are worth the price.

  6. #6
    Junior Member
    Join Date
    Jan 2006

    amber fire
    1968 chevelle

    i have a set of dart iron eagles on an sbc 350 and i love em, they r a great head and i got them for a great price, they only thing im planning on doing is port matching the heads to the intake.

  7. #7
    Join Date
    Oct 2005

    Mag Red
    2002 Vette

    The Dart LS1 Pro 1 heads have the following features.

    1. They flow well as cast.
    2. They have one piece solid stainless forged valves made by Eaton who makes valves for most of the name brand companies. When I had mine apart, the valves were marked as REV CL 1158 adn CL 1170.
    3. Beehive springs that are nitrided made by PSI. PSI makes a lot of the NASCAR springs. They don't have a lot of history on a street application though, as most people run the Comp 918's when they run a beehive spring.
    4. One piece valve seals/seats made by US Seal who also makes the GM seals used on the LS1.
    5. Machined locks on the valves.

    For the price, not sure how you can go wrong. I bought mine, disassembled them and have just lightly cleaned them up. They should work well out of the box

  8. #8
    Junior Member
    Join Date
    Jan 2006

    1998 Pontiac Trans Am

    Thanks for the Info!!!!!!!

  9. #9
    If DART makes them they are GOOD. ........ I have a set of 230cc pro 1 on my blown 422 and they rock.

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