Cylinder Head / Valvetrain

  • Adjustable Pushrod

    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

    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…

    $134.99

    $134.99

  • PAC 1215 Valve Spring Set

    PAC 1215 Valve Spring Set

    Set of 12 PAC 1215 springs. This USA made beehive spring is a drop in replacement for 3100, 3400, and 3500 engines, with a 1.700" Install height  Drop in with matching retainers for the Gen 2 2.8/3.1 Aluminium head engines, using the same stock 1.700" install height.  3.5/3.9 VVT engines also use…

    $164.99

    $164.99

  • PAC 1218 Valve Spring Set

    PAC 1218 Valve Spring Set

    Set of 12 PAC 1218 springs.  This USA made beehive spring is a drop in replacement for 3100, 3400, and 3500 engines, with a 1.700" Install height  Drop in with matching retainers for the Gen 2 2.8/3.1 Aluminium head engines, using the same stock 1.700" install height.  3.5/3.9 VVT engines also us…

    $164.99

    $164.99

  • PAC 1286 Valve Spring Set

    PAC 1286 Valve Spring Set

    Set of 12 PAC 1286 springs.  This USA made beehive spring is a drop in replacement for 3100, 3400, and 3500 engines, with a 1.700" Install height  Drop in with matching retainers for the Gen 2 2.8/3.1 Aluminium head engines, using the same stock 1.700" install height.  3.5/3.9 VVT engines also us…

    $164.99

    $164.99

  • Comp 26986 Valve Springs

    Comp 26986 Valve Springs

    Set of 12 Comp 26986 Valve Springs.  Drop in fit for all aluminum head 60V6 pushrod engines.  Uses the same retainers as 3100, 3400, 3500, and fits the stock seat/seal combination as well as the Gen 2 2.8/3.1 MPFI Aluminum head setups.  Recommended for its ease of installation for all Stage 1 des…

    $184.99

    $184.99

  • Comp 26915 Valve Springs

    Comp 26915 Valve Springs

    Set of 12 Comp 26915 Valve Springs.  These springs will fit the stock 3100/3400/3500 valve spring seat/seal combination, or you can run our LS style seat and seals.  3500/3900 VVT engines can use the stock seat/seal without any interference due to the smaller .500" OD valve guide. 105 @ 1.80…

    $154.99

    $154.99

  • Comp 26918 Valve Springs

    Comp 26918 Valve Springs

    Set of 12 Comp 26918 Valve Springs.  LS style seat with matching seals for your size guide OD are recommended for 3100, 3400, and 3500.  Stock 3500/3900 VVT engine seat/seal combination are fine since they have a .500" OD guide.  Stock 3100/3400/3500 seat/seal combination require a bit of effort …

    $184.99

    $184.99

  • 8mm Valve Stem Seals and Seats

    8mm Valve Stem Seals and Seats

    Compatible with 1987-2005 2.8, 3.1, 3100, 3400, and 3500 engines.  .553" OD guides.

    $64.99

    $64.99

  • Roller Lifter Set

    Roller Lifter Set

    Set of 12 Race Proven Hydraulic Roller Lifters. 

    $189.99

    $189.99

  • 1994-1999 Performance Timing Chain Set

    1994-1999 Performance Timing Chain Set

    The strongest timing chain available for the 1994-1999 3100 and 3400 V6 engines.  Cryo and Polish option is available to further improve the durability of the gears and chain. Set Includes Crank Gear Cam Gear OEM Timing Chain Chain Damper    This set will also work in the…

    $129.99

  • ARP Header Studs

    ARP Header Studs

    Headers can represent a sizable investment, so you'll want to keep them securely attached. In addition, exhaust leaks can cost you power and even cause damage to your vehicle. ARP has the answer, in the form of their stainless steel header studs. They're made from premium 300 stainless steel, which …

    $134.99

    $134.99

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