Cylinder Head / Valvetrain

  • Head Bolt Set

    New head bolts are recommended when removed from the engine due to their Torque to Yield design.  Please tell us what vehicle you are using these for, or the donor vehicle if you are swapping an engine.  This listing is used for all variations of the GM 60V6 and because there are multiple part num…

    $37.99

    $37.99

  • Timing Chain Tensioner

    Use this tensioner to keep the chain tight compared to the OE dampener. Works with all Gen 3 engines.  May fit Gen 1 and 2 as well

    $29.99

    $29.99

  • Comp 26925 Double Spring Kit

    Dual Valve Springs for Aluminum head 60V6 engines.  These springs use our LS style seat/seal combination for a perfect fit and come with the matching retainers for use with stock keepers.  Other than the 3500/3900 VVT engines, stock install height of 1.700" will give 185# seat pressure and 385# @…

    $259.99

    $259.99

  • Custom Tuning (OBD2)

    Tuning is available for 3100 and 3400 engines only!  HPTuners has removed the newer engines from our license and we are unable to offer any tuning services for those applications. If you have HPTuners hardware, we can help you with the tuning as well as learning how to use your hardware for the…

    $49.99

    $49.99

  • Pushrod Guideplates

    Pushrod Guideplates for use with the 3100 and 3400 Gm V6 engines.  Modified, these also fit the 3500 LX9 heads.

    $49.99

    $49.99

  • 60V6 Head Alignment Pin Set

    New GM Alignment Pins (Dowels) for the aluminum 60V6 cylinder heads, sold as a set of 4. 

    $19.99

    $19.99

  • ARP Aluminum 60V6 Head Stud Kit

    This kit has been tested on a the 2.8/3.1 MPFI, 3100 SFI, 3400, and 3500 cylinder heads using the stock roller rocker arms.  Includes 8 long studs, 8 short studs, 16 washers, and 16 12 point nuts. Recommened ARP moly lube is included.  Studs should be installed hand tight and the nuts torqued dow…

    $209.99

    $209.99

  • ARP 3.4 DOHC 60V6 Head Stud Kit

    This kit is for the 3.4 DOHC engine (LQ1) 91-97.  Includes 16 studs, washers, and nuts.  Most important thing to know for this kit, is the cylinder heads need to be modified around the bolt holes to allow room for the washer.  Otherwise only the nut will fit on top.  Simple work for a machine sh…

    $219.99

    $219.99

  • 2.8/3.1/3100 MLS Head Gaskets

    MLS head gaskets are comprised of three layers of stainless steel. The outer layers are an embossed viton coated stainless steel providing a superior seal with excellent rebound characteristics (reusable!) and are corrosive resistant. MLS head gaskets reduce bore distortion and withstand extreme cy…

    $219.99

    $219.99

  • Custom Length Pushrods

    Custom length pushrods will give you the most from your camshaft upgrade due to the optimal preload on the lifter, and the thicker .083" wall thickness.  Made from heat treated 4130 chromoly steel coupled with heat treated pushrod ends, and good for up to 700 pounds open valve spring pressure. Whe…

    $154.99

    $154.99

  • Adjustable Pushrod

    5.700-6.250" range adjustable pushrod to determine the correct pushrod lengths for optimal preload. 

    $22.99

    $22.99

  • Manley Retainers and Keepers

    Set of 12 Manley 4140 chromemoly steel retainers and machined keepers, made in the USA. 13% lighter than stock per valve and more consistant install height than Comp.  Manley shaved the top of the retainer to be flush with the keepers, which gives more clearance between the retainer and the rocker…

    $124.99

    $124.99

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