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…

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…

Adjustable Pushrod

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

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…

Stock 3x00 Valve Stem Seals

Stock replacement viton seat/seal combination for all Gen 3 engines.  1994-1999 3100 and 3400 use the .520 OD guide seal.  All 2000 and newer 3100, 3400, and 3500 use the .553 OD guide seal.  Please specify which set you need in the options above.

Valve Stem Seals for LS1 Seats

For valve springs that require the LS1 seats to be use, a non stock valve stem seal is required.  There are 2 versions available, for .520" and .553" OD valve guides.  94-99 3100 and 3400 engines use the orange .520" stock seals.  Everything 2000 and newer use the blue .553" stock seals …

Performance Roller Lifter Set

Precision ground roller bearings and internal hydraulic cylinder help reduce friction and improve durability.  The internal valving is specifically designed for the 60V6 engines are will give the optimal results with any of the valve springs and camshafts we sell provided you run the proper preload…

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…

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 …

1997+ 3100 Tuned PCM

Our performance computers are based on dyno testing and street testing, giving the best possible tune for those than take care of their vehicle.  Improved spark and fueling based on application/octane, and improved shift points and line pressure adjustments for the 4T45 and 4T65 equipped engines. …