LZ4/LZ9 Cam Spacers for VVT Delete

The VVT engines have become more popular for swaps, but without a cam option it is limited in performance.  Our spacers allow you to use the same cams we list for the 3100/3400/3500 engines and bypass the VVT setup completely.  Designed by WOT-Tech and made in the USA.  Each set includes a set of…

Fuel Injector Service

If you want a set of 6 injectors cleaned, flow tested/spray pattern checked, and serviced with new o rings and filters, we can offer this with a couple day turn around time.  We don't check for before/after results, as this is not a dedicated fuel injector cleaning shop and our injector bench is bu…

ARP 3500/3900 V6 VVT Head Stud Kit

This kit is for the 3500/3900 VVT V6 Engines.  Includes 16 studs, washers, and nuts.   It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there’s not a better stud setup on t…

Oil Bypass Valve

GM Oil Bypass Valve is a simple piece to remove and replace when you have a block cleaned for a rebuild.  

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# @…

Custom Tuning (OBD2)

This listing is for tuning only.  If you are looking for a programmed computer, please use the Performance Computer listing.  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 ap…

HPTuners MPVI 2

The newest version of HPTuners hardware was recently released, with improved features and updated software.  These units do not include credits, which are required to tune a car.  You can scan without credits, so we offer these bare, and with 2 credits at a discounted rate.  Additional credits ca…

Forged 3500 LZ4 Pistons

Pistons are a 2618 Alloy, designed with the clearance in mind for the bore size specificed.  We recommend measuring the pistons before the block is bore/honed to be certain of final clearances.  Due to the stock rod using a custom size pin, we can only offer Tool Steel H13 pins, which is normally …

Forged 3900 LZ9 Pistons

Pistons are a 2618 Alloy, designed with the clearance in mind for the bore size specificed.  We recommend measuring the pistons before the block is bore/honed to be certain of final clearances.  Due to the stock rod using a custom size pin, we can only offer Tool Steel H13 pins, which is normally …

ARP Crank Damper Bolt

As the crankshaft flexes, the damper absorbs incredible amounts of energy. This damper bolt kit from ARP will ensure that your balancer is locked into position. They feature a 1/4 in. thick wide-area washer and an extra tall 12-point head that accepts a deep socket to eliminate the fear of strippin…

ARP Flywheel/Flex Plate Bolts

These premium-grade Pro series flywheel/  flexplate bolts from ARP are forged from aerospace alloy and heat-treated prior to thread rolling and machining. They feature an exclusive, flat 12-point head design and a larger-than-stock shank diameter for increased strength and improved register. …