LS9 beehive ovate wire valve springs LS3 LS2 LS6, set of 16

$64.95 $59.95

Set of 16 GM LS9, LS3, LS2 and LS6 valve springs
PN 12625033

Description:

  • LS9 valve springs, GM part  # 12625033

  • Also replaces earlier GM  LS3, LS2 and LS6 valve springs

  • These earlier GM part  numbers have been replaced by these springs:

    • 12565313

    • 12606144

    • 12586484

  • One  engine set (16 pieces)

  • Shipped loose

  • If you would  like springs shipped in an individual box with dividers see our other eBay  listing for these springs boxed with a divider

  • For use with stock OEM LS1, LS6, LS3, etc locks and retainers or aftermarket equivalent parts

    •  Recommend checking spring coil bind height when being used with  camshafts over 0.530" lift
  • For use with camshafts up  to 0.560" valve lift  (assuming 1.800" installed height)

Specifications (from GM information):

  • Beehive style springs 
  • Seat pressure:
  • 90 lbs pressure @ 1.800" installed height
  • Open pressure:
  • 295 lbs pressure @ 1.250"  height 
  • Max valve lift .570" (be sure to check coil  bind height)
  • Use with cap 10166344 and keeper 10166345

  • From the GM CT400 circle track engine technical  bulletin:

    Valve Spring Specifications
    Valve  Spring P/N:12625033
    Diameter  Top (+/- .008") 1.060"
    Diameter  Bottom (+/- .008”):1.270”
    Free Height  (+/- .015"):2.122"
    Installed  Height:1.800"
    Pressure @  Installed Height (+/- 5 lbs):90 lbs.
    Open  Height:1.300"
    Open  Pressure (+/- 13 lbs):264 lbs.
    Coil Bind:1.210"
    Wire  Diameter:Ovate

    Ok for use with the following camshafts  (assuming 1.800" installed  height):

    • 12561055 ASA camshaft - 1.7 and 1.8 rockers

    • LS6 (2001 model year) - 1.7 and 1.8 rockers

    • LS6 (2002-2004 model year) - 1.7 rockers, NOT for use with 1.8 rockers

    • LS1, LQ4, LQ9 - 1.7 and 1.8 rockers

    • LS7 camshaft - 1.7 rockers, NOT for use with 1.8 rockers

    • LS3 camshaft - 1.7 rockers, NOT for use with 1.8 rockers

    • LS9 camshaft - 1.7 rockers, NOT for use with 1.8 rockers

    • LSA camshaft - 1.7 and 1.8 rockers

    • LS Hot Cam - 1.7 and 1.8 rockers

     

    Part #: 12625033

    Quantity:

    • Sixteen (16) pieces

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