Oil Temperature Adapter (VG, RB Engines)
(IN SOTCK) US $22
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Multi-Layer Stainless Head Gaskets, SOHC VG Engine
(OUT OF STOCK) US $309
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Head Stud Kit, SOHC VG Engine
(OUT OF STOCK) US $299
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H.P. VG30 Fuel Rails (OUT OF STOCK)
$179
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Fuel Rails:

(polished +$10 )

(Modify for side-feed lower intake +$0 )

(Modify for side-feed lower intake, polished +$10) )

Next Batch is in stock: top-feed standard finish.
Our new high performance fuel rails are designed for use with other OE or aftermarket high-flow fuel injectors. They are machined from extruded aluminum fuel rail stock and with a .500" inside diameter and -6AN fittings the pair will support well over 1000 horsepower when run in true parallel and over 700 horsepower in series. They are machined with a specially chamfered end and tapped for the included high pressure -6AN O-ring boss fittings, as opposed to using NPT fittings and teflon tape. Rails are made for either early "top-feed" injector (or 84-86NA and 84-85T) style lower intake manifolds, but are designed to be easily be modified to fit the later "side feed" 87-89 style (the only difference in the lower intake manifolds is the injector bolt location).

Z31Parts fuel rails allow installation of very common 11mm import bosch and lucas style top-feed o-ring fuel injectors. This includes all the EV1 11mm o-ring injectors which are very common on late-model imports and have the same connector as factory on your 300ZX; no connector swapping is generally needed. We use and recommend injectors from 1986-1988 Mazda RX7's for their single cone spray pattern (same as stock injectors, for best atomization and fuel economy) and much higher flow rates.
Made In The USA

Notes:
- Stock hose-barb fuel injectors will not work with o-ring fuel rails.
- Fuel injectors and seals are NOT included.
- Not a direct-fit item, due to using AN fittings instead of factory hose barbs.

Fuel Injector Seal Kit (In Stock)
$25
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• 6 O-rings for 11mm (import) top-feed o-ring injectors.
• 6 Spacer grommets (fit below o-ring)
• 6 OEM lower injector-manifold seals

Russ' Adjustable Cam Gears - US $249
+ $100 core charge (In Stock)
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Available in RED and BLUE for VG30 and VG33

Red:

Blue:

THE REFUNDABLE CORE FEE IS $100.

EXCLUSIVE part, Now Available For both VG30 and VG33! These cam gears are precision machined stock gears with replacement aluminum hubs. The use of a staggering 8 bolts to secure the hub assures they will always stay in the set degreed position and never “slip”. Adjusting camshaft timing up to +5 and -10 degrees has never been easier or more accurate! No other adjustable cam gear on the market offers this adjustment ability or versatility for the VG30.

Changing cam timing "shifts the powerband up or down". Generally speaking, advancing cam timing yields more mid-low range torque, while retarding cam timing yields more high end horsepower. See for yourself with the dyno graphs here. Contact me to request VG33 round tooth style, otherwise order is default for VG30 square toothed style gears. Made In The USA

EFFECTIVE 9-08: $100 cam gear core fee charged at time of purchase. We prefer cam gear cores to be sent in advance with a money order, but the links above will allow you to purchase a set if you can't have any vehicle downtime. Cores must be VG30 cam gears of OEM type, and NOT be painted or excessively rusty. Contact for information.

Oil Pressure Adapter Fitting - US $11
(IN STOCK)
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Adapter fitting for installing an aftermarket oil pressure gage on your engine. Most aftermarket gages come with 1/8" NPT fittings which are not the correct thread pattern for the oil sender location. This adapter allows you to install the aftermarket pressure fitting to the stock location with ease!

Magnetic Oil Drain Plug - US $11 (IN STOCK)
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This replacement magnetic oil drain plug will collect small metal particles from your oil and prevent them from being circulated into the engine. This can prolong the life of your oil pump and your engine! You can also take a small 'look' at an indication of the internal condition of your engine every oil change!

Throttle Body Spacer - US $20 (OUT OF STOCK)
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(60mm TB)

Phoenolic-type spacers for isolating throttle body temperature from that of the upper intake plenum. Used either to further decrease intake charge temperature combined with our plenum spacer, or to insulate the intake plenum from heat while the coolant lines to the throttle body are left in place.
Made In The USA

VG Intake Plenum Spacer Kit- US $79 (OUT OF STOCK)
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This machined phoenolic-type intake plenum spacer provides a barrier for heat from the lower intake manifold to enter the upper intake plenum. Heat transmitted into the aluminum upper intake from the lower intake heats the intake air and reduces the engine's power potential.
-Preliminary tests have shown between 20 and 80 degree F drops in intake plenum temperature, depending on conditions.
-The 3/8" thickness also increases the intake runner length by the same 3/8" (.375").
-Also removes the requirement for a gasket between the plenum and lower manifold.
*Kit components may be subject to change
Made In The USA

170F/77C Low-Temp Thermostat- US $20 (IN STOCK)
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Enhance performance easily without losing notable fuel economy. A high quality 170 degree temperature thermostat will keep the entire engine running cooler, but without the larger reduction in fuel economy than the very expensive NisMo 160 degree thermostat will cause because of the ECCS's temperature enrichment. The reduced charge air temperature and reduced chamber temperature effected by use of a cooler thermostat will result in gains in power at all RPM, along with additional safety form a raised detaontion threshold.