Over the last couple years the priorities in my life have changed. Had Matrix Garage grown big enough to hire enough employees and leave them to running it while I pursued other things I would have happily taken that route but it has generally stayed just big enough to keep me working overtime. 
I have decided to start focusing my carreer and passions elsewhere and that means that supporting the AW, AE, 4A and related communities has had to be moved much lower on the priority list. I have decided to keep the store up to provide parts that only we offer, or other things that are hard to come by elsewhere. You will notice many big name, readily available products have been taken down and we will continue to do so. It's just not worth our time trying to compete with the big corporations selling at cutthroat prices and it just takes up more of my time. 
I will try to keep providing those parts that we make or that we have developed and sell as a service to the community but understand that now this is something I do in my spare time because I don't want to leave people hanging. 
I try to make shipments and process orders at least twice a week. If you want Amazon next day shipping buy from Amazon. I will do my best to keep order time and customer service at a reasonable level but have some understanding. I am not making money on this and it takes away from my other work and other issues that are very important to me right now. 
I have always wanted to make our designs and other information open source and available to the community but to do so properly would take a lot of time making sure that models and drawings were complete, accurate, or properly described. To go through everything and make sure it was something that I felt comfortable releasing to the community. I would love to find someone who was willing to help me do this. Someone in engineering school or passionate about this to help go through 3D scans, CAD designs, and information to prepare it. If you are interested feel free to email me. 




16v 4AGE Largeport and Smallport


TVIS shaft seals


These are the seals for the TVIS plate shaft. This can be a common source for intake leaks and high idle.
Comes in a set of 2 seals

Price: $15.00

Gates racing timing belt.


Gates' timing belts offer a precision fit with easy installation and no interference engine damage - exactly what you've come to expect from the worldwide leader in timing belts. 
- Tensile cord reinforced with premium, high-strength glass cords
- Gripping teeth with aramid fiber technology and high saturation HNBR elastomeric composites for exceptional durability and heat resistance
- Wear-resistant tooth jacket supported by reinforced nylon fabric and double-tooth stability

Price: $55.00

16 valve 4AGE Distributor rebuild kit


We have sold out of these. Because the individual components are readily available and we make so little on them it's not really worth putting the kits together. I will keep this product page up as I intend to post the part numbers for the components we use to make the kits as soon as I get a minute. 

This is a full rebuild that should work on all 16 valve 4AGEs.

Includes the cap o-ring, dizzy to block o-ring, inner oil seal, bearing and a crush pin.

Price: $10,000.00

Gates timing belt tensioner pulley


High quality tensioner pulley. Same as OEM.
Fits largeport and smallport 4A-GE

Price: $40.00

Timing Belt

Price: $238.00

Greddy Timing Belt


Engineered to increase heat-resistance, flexibility and durability, GReddy Extreme Timing Belts reduce the chances of cracking from heat, inconsistent timing from stretching and skipping or snapping. Improvements in materials and construction lead to a more reliable belt that will be more consistent and last longer.
This timing belt will also work on a 20 valve 7AGE hybrid motor.

Price: $135.00

Gates timing belt (16 valve 4A-GE) (20 valve 7A-GE)


High quality OEM equivelent timing belt.4A-GE 16 valve
4A-GE 16 valve
7A-GE 20 valve hybrid using 7A block, 20 valve 4A-GE head and 16 valve 4A-GE tensioner

Price: $25.00

Cometic Multi Layer Steel (MLS) Head Gasket


Available in 81mm bore or 83mm bore.
Also available in many thicnesses. Select your choice in the dropdowns below.

Price: $88.00

StreetPro StreetPro Top End Kit w/MLS 81mm Head Gasket


The heart of any hotrod, race car, or tuner car is the engine that powers it. just like a real heart you should do anything to protect it so that it can continue to perform for many years to come.  Cometic is pleased to offer protection for your engine in the form of StreetPro gasket kits.  Hundreds of hours of research and development goes into these kits to make sure each part was made of the best material available and that every needed gasket or seal was included.

Price: $185.00

ARP head stud kit for 16 valve 4AGE


Full head stud kit for 16 valve 4AGEs.

Price: $102.00

courtesy of