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Difference between holden and HSV 304s

Discussion in 'V8 Development and Modification' started by s_pack, Oct 21, 2007.

  1. s_pack

    s_pack New Member

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    I've looked around but haven't been able to find a very straight answer as to what the mechanical differences (if any) are between the HSV 185kW 304 motors and the normal Holden 165kW. Was it just an exhaust, headers and tune? Was there any bottom end differences? Cheers guys.
     
  2. Wagon_Wheel

    Wagon_Wheel Drop A Patch....

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    The main difference is the exhaust and tune. But other things like knock sensors and stuff were in the HSV's, im not entirly sure but im sure someone will
     
  3. sand_man

    sand_man New Member

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    roller cam too i think
     
  4. 88GreenVN

    88GreenVN Next Exit Left

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    The early VQ's has a SVU prefix on the engine numbers. No one has come up with what was different from a standard engine with a VU prefix.

    It has to have had some change or it would've had the same prefix.

    Unless the SVU had a different ECU
     
  5. Dan355

    Dan355 Go THE SS's

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    I think the roller cam was in the 215's. I think its just exhaust, and memcal thats physically different.
     
  6. Boonz

    Boonz Donating Member

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    didnt the hsv motor run knock a knock sensor for the hsv tune??
     
  7. RVN 355

    RVN 355 New Member

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    knock sensor,detonation sensor advanced timing,hsv cai intake,higher octane tune,exhaust 185i headers so theres a few difference ie 185i hsv engine,the vn 165i is a de tuned motor like the 220i vt series II 5.7L look what there at now 245kw VZ's so there's an example.
     
  8. pandaman

    pandaman Aussie Muscle Fan

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    Only holden V8's with a roller cam were the VS series 3 and VT. The 215i strokers ran a different cam to the 165 and 185kw 5L's, but it was still a flat tappet hydraulic. It's equivalent to a Crane H268 or a Crow4001. The 200kw HSV 5L ran this cam as well. Check out cranecams.com.au for details on holden v8 cam specs.

    I'll add my voice to the many others saying that the only differences between the 165 and 185 motors were knock sensor, tune, exhaust (including crappy tube type headers) and cai.
     
  9. 88GreenVN

    88GreenVN Next Exit Left

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    Sooo do you think the S on the SVU prefix could be taken as SENSOR type engine.

    Does anyone have a VN/VQ with a SVU engine prefix and not have a knock sensor?
     
    Last edited: Oct 22, 2007
  10. Dan355

    Dan355 Go THE SS's

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    Was it those motors that ran the four bolt mains?

     
  11. 88GreenVN

    88GreenVN Next Exit Left

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    The 4 bolt main engines (200kw SV5000) I think had a C4 code. I may be wrong.
     
  12. AirStrike

    AirStrike Administrator Staff Member

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    Looks like I need to sort all of this out.

    Base engines - VN-VS SI - 165kw

    Base engines - VS SII - 168kw
    Same as above with revised CAI

    Base engines - VS SIII & VT S1 - 179kw
    Roller cammed blocks

    HSV Enhanced - VN & VP - 180kw
    Comes with different headers, airbox, memcal/tune and knock sensor


    HSV Enhanced VR & VS - 185kw
    Same as above

    HSV Enhanced VS SIII & VT S1 - 190kw
    Same as above but roller cam block, and upgraded cam

    HSV red engine covers - VN & VP - 200kw
    Headers, memcal/tune, airbox, knock sensor and cam

    HSV black engine covers - VP (GTS, 5000i models) - 200kw
    4 bolt main caps, crane roller rockers and revised springs

    HSV Group A - VN - 215kw
    Same as above including TTB manifold

    HSV Stroker - VR & VS - 215kw
    Harrop stroker crank to increase CI to 350

    HSV Stroker - VS SIII & VT S1 - 220kw
    Same as above but roller cam

    I have left out alot of detail, but you get the idea.
     
  13. 88GreenVN

    88GreenVN Next Exit Left

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    So the SV5000 missed out on the 4 bolt mains.

    And the S is still floating around (SVU) engine prefix.....
     
  14. AirStrike

    AirStrike Administrator Staff Member

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    Nope, standard 2 bolta. I'll get onto that for you tomorrow.
     
  15. pandaman

    pandaman Aussie Muscle Fan

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    Good summary. Probably worth mentioning that the groupA ran a different camshaft to the 200kw motors though.
     
  16. AirStrike

    AirStrike Administrator Staff Member

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    Like I said, it was a quick summery.
     
  17. Emackulation

    Emackulation Banned

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    I like telling people I have 4 bolt mains when they say I have 2 :D
     
  18. greenfoam

    greenfoam New Member

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    Did the GTS get the D port heads?
     
  19. AirStrike

    AirStrike Administrator Staff Member

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    Nope, only the Group A scored the D port heads.
     
  20. cruzncommo

    cruzncommo Banned

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    knock sensor, pistons and slightly bigger cam
     

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