TPI Parts

Was originally used on TPI equipped Corvettes,

but may be used on any '85-'92 TPI setup. 

Cast aluminium. 

Requires x3 M4 Socket Head Screws.

Fitment: 85-92 305 TPI
               87-92 350 TPI

TPIs 58MM throttle bodies start out as a solid block of 6061 T6 heat treated aluminium (not a casting).  They feature a re-designed throttle linkage cam for better throttle control and feel. They also sport a black oxide finished-turned, ground and polished throttle shaft supported by sealed ball bearings for a super long lifespan, and CNC machined throttle blades (not stamped like others) for a precise fit.  Bodies are anodized 'Carbon Black' for a long lasting finish. A billet IAC housing, TPiS ID plate, and gaskets are included.  All parts are manufactured by TPiS in the U.S.A. This throttle body flows nearly 1100cfm and are great for engines making 480-600hp. **Specify year and model when ordering**

This billet IAC housing is CNC machined and anodized "BLACK" to protect from corrosion and keep it looking great. This housing fits 85-92 TPI and 92-93 LT1's, eliminates the hot engine coolant passage to keep your incoming air at a cooler temperature. This is the same housing that comes on TPIs Billet 58mm Throttle bodies and works great on all stock as well as the 52mm throttle bodies.  Each IAC housing comes with a new gasket and three stainless steel bolts. 

Trying to shed some of your racecar's weight?  Installing a TPI or LT1 engine in an older car?  Our A/C compressor eliminator pulley kit offers a simple and clean way to get rid of your bulky A/C compressor while you to retain the factory belt routing. Simply replaces the compressor.  Manufactured in the U.S.A. from billet 6061 aluminium and anodized "Titanium Grey" will ensure it will look and perform great for years to come.

Trying to shed some of your C4 Corvette racecar's weight?  Installing a TPI engine in a different chassis?  Our air pump eliminator pulley kit offers a simple and clean way to get rid of your factory air pump while allowing you to retain the factory belt routing. CNC machined 6061 aluminium is anodized "Titanium Grey" for long lasting looks and performance. 

The TPiS AirFoil is one of the first parts to start the EFI performance movement in the late 1980's. 

It is very easy to install, taking only about five minutes.  When bolted in place, the AirFoil eliminates turbulence as air enters your engine's throttle body allowing it to produce more power.  In a typical stock or mild engine you'll notice better throttle response and a 5-10 hp gain.

This Plate is designed to block off the feed tube on your 85-97 TPI/LT1 intake manifold.  Each plate is mad of 6061 billet aluminium, anodized "Cool Grey" for a long lasting and durable part that will look great for years. For motorsports use only, when the EGR system is no longer being used.

If you are removing the EGR valve from your 85-92 tuned port car this plate will make the job easy.  Machined from billet aluminium and anodized "Cool Grey".  For motorsports use only, when the EGR system is no longer being used.

If you are going to remove you EGR valve off your 92-97 LT1 car, there is no better way than with this block off plate. This billet piece is machined from 6061 aluminium and anodized "Cool Grey".  Also see our 1.BOP020 Feed Tube Block Off Plate!

This is a popular conversion for older cars with a single wire O2 sensor such as the 1985-93 TPI & LT1 vehicles. By running a 12v switched power and a ground, the heating element in this O2 helps keep the sensor at a stable temperature to help maintain closed-loop operation and give more accurate readings to the ECU. This is a genuine Bosch sensor and comes with weather-pack kit for easy retro-fit on older cars. 

Used on all TPI/LT1 cars from 84 on up to 93, they were the first generation O2 sensor for GM fuel injected vehicles. This is a direct replacement AC Delco part that is guaranteed to keep your cars computer receiving accurate air/fuel ratio readings and your engine running at optimum efficiency. 

These wire extensions are for a single-wire style O2 and are 16" long. Perfect for installing long-tube headers. Wire colour is purple and uses O.E. style weatherpack connectors.

Keep your car running cooler in hotter parts of the world. Replacing the stock fan switch with this one along with a 160deg thermostat, turns your fans on sooner to keep the temperature lower when not running at highway speeds. Replaces factory fan switches on 85-92 TPI cars if originally equipped.

This handy little piece of steel is ideal for fitting custom headers without O2 provisions or for simply re-locating the O2 in situations where the current location is less than ideal. Its as easy as drilling an 11/16 hole in your exhaust and weld the bung in place. 

Used primarily for capping an O2 test bung where the O2 sensor is temporarily used for diagnostic purposes or as a tuning tool for programming.   After diagnostics and tuning, the O2 sensor is removed and the bung is capped off with this 

brass plug. 

Earls Performance Fuel Pressure Gauge. 

0-100 psi, 1 1/2 in. Diameter, White Face, Chrome Bezel, Liquid-Filled, Analog,

1/8" NPT Male Thread.

Suitable for Fuel Injection.

Russell Fuel Pressure Gauge, 0-15 psi, 

1 1/2 in. Diameter, Machine Face, Chrome Bezel, Liquid-Filled, Analog, Mechanical,

1/8" NPT Male Thread.

Not suitable for fuel injection.

3/8 in. x 25 ft. Tubing, 

Aluminium, Natural.

EFI Fuel Service Port Scrader Valve Adapter Fitting allows for a plumbing connection directly to the vehicle’s fuel system service port schrader valve. 

Fitting is made of 6061 T-6 aluminium with a 1/8 inch NPT female port opposite the EFI service port end, hard-coated anodized red (GM/Chrysler) or blue (Ford). 

Steel swivel fitting.  1/8 inch NPT female swivel and 1/8 inch male end. 

Racetronix 90° Fuel Pressure Gauge Adapter (-4 AN Male to 1/8" FPT, Black) - for mounting a 1/8" NPT 0-100 Fuel Pressure Gauge on the Fuel Rail.

Made from original spec rubber compounds, these O-rings replace old, worn, or damaged ones that can cause a vacuum leak or worse yet, a fuel leak. They fit any GM port fuel injector from 1985 up to 2005. 

Sold in sets of 16.

When changing valve springs when the heads are on the engine, you must pressurize the cylinder to keep the valves from dropping into the cylinder.  This little inexpensive tool threads into the spark plug hole and connects to your shop air compressor hose with the same quick coupler you use for your air tools.  Fits all Chevy V-8 heads.

Coupler nipple not included.

An adjustable fuel pressure regulator is an easy way to fine tune your air/fuel mixture at wide open throttle and help tune you fuel trim levels. The '85-'92 TPI cars use a removable hat under the plenum that is replaced with our adjustable billet hat with six Torx screws. The kit even comes with the Torx tool and a fresh pair of plenum gaskets to top off the installation. This product is for fine tuning only.  Not intended to make major changes to your mixture due to large injectors, rich idle conditions, etc.. where programming may be needed.

This set of six runner gaskets are OEM replacements and include the four lower and two upper runner gaskets. For use on stocks size runners.

For '85-'92 TPI equipped cars. 

This gasket is a replacement for any stock or 52mm throttle body on '85-'97 TPI & LT1 cars. Made of the same quality gasket material as all our TPIs gaskets, they are die cut for a precision fit.

Throttle body gaskets kits are made of high quality gasket material and include an ID plate and an IAC gasket as well as the stock/52mm throttle body gasket.

These 85-92 TPI large tube runner gaskets are die cut from quality gasket material and include two top and four bottom runner gaskets as well as a throttle body gasket for your stock sized or 52mm throttle body. 

Manufactured from quality gasket material and die cut to fit TPIs 58mm billet throttle body. For use where any TPIs 58mm throttle body is used.

Throttle body gaskets kits are made of high quality gasket material and include an ID plate and an IAC gasket as well as the 58mm throttle body gasket.

The billet aluminium bracket mounts to the side of the Tuned-Port plenum. The billet aluminium bracket is available with a single stud for throttle only, double stud for throttle and kickdown, and triple stud for a throttle, kickdown and cruise control. Available in Black, Polished, or Brushed.

The billet aluminium bracket mounts to the side of the Tuned-Port plenum. The billet aluminium bracket is available with a single stud for throttle only, double stud for throttle and kickdown, and triple stud for a throttle, kickdown and cruise control. Available in Black, Polished, or Brushed.

The billet aluminium bracket mounts to the side of the Tuned-Port plenum. The billet aluminium bracket is available with a single stud for throttle only, double stud for throttle and kickdown, and triple stud for a throttle, kickdown and cruise control. Available in Black, Polished, or Brushed.

All Lokar Throttle Cables are available in either stainless steel braided housing, black stainless steel braided housing or black housing. They are designed with a specially extruded liner for extended life of the cable – not to be confused with   ordinary braided brake hose. Cables are equipped with aluminium fittings and aluminium ferrules to eliminate fraying. “U-Cut-to-Fit” outer housing is available in 24" or 36" lengths with a “U-Cut-to-Fit” stainless inner wire. Clevis is designed without cotter pins or set screws. Adapts to factory and aftermarket pedals. Available in black also.

Lokar's "U-Cut-to-Fit" Kickdown Cables are available in either stainless steel braided housing, black stainless steel braided housing or black housing. They are designed with a specially extruded liner for extended life of the cable - not to be confused with ordinary brake hose.  Kickdown features aluminium fittings with ferrule to eliminate frayed cable ends.  Kickdowns are adaptable for all types of manifolds including tunnel ram, blower manifolds and Weber induction systems.

Stainless bracket mounts to rear of Holley, Edelbrock, AFB, Quadrajet, Demon (excludes Street Demon), and In-Line Dual Quads.  Stainless bracket and GM designed dual stainless springs are used to mount Lokar's Throttle Cable and Kickdown kits.  Design provides improved clearance on Edelbrock carbs.  Design includes tension screw to prevent bracket from movement under extreme pressure on a kickdown cable, such as with a 700-R4 transmission.

Flexible Engine Dipsticks are designed with a billet aluminium handle to coordinate with Lokar's Flexible Transmission Dipstick.

Slim design allows mounting inside headers. Designed for use with factory or block hugger headers.

Applications available for GM, Ford and Chrysler. E-Z to Read flexible inner dipstick measuring cable for accurate measure of engine oil.

Lokar's Flexible Braided Stainless Transmission Dipstick. Kit comes complete with braided stainless outer housing and heat resistant E-Z to Read flexible inner dipstick measuring cable. Inner cable is moulded with appropriate trans fluid levels. Billet aluminium handle and billet aluminium fittings complement Lokar's Flexible engine Dipsticks.

 Kit includes dipstick funnel adapter to assist in filling.  Applications available for GM, Ford and Chrysler in both firewall mount and trans mount. The firewall mount dipstick measures 24" in length.

Firewall Mount Dipsticks also available in 

36" and 48" lengths.