This oversized valve set has been developed by MT Performance Engines for the 4AGE 16V. These are THE valves for big power in a 4AGE 16V head. The valves and seats are the best money can buy, and are what are used in serious builds at MT Performance Engines.
 
Due to demand, we are making these available to the public so you can finally have a high-quality oversized valve solution for the 4AGE 16V platform.
 
The set includes:
 
Supertech intake stainless valves +4mm OS
Supertech inconel exhaust valves +4mm OS
CHE copper-nickel and beryllium seats to suit
 
For comparison, Photos 5, 6 and 7 show old-looking, original 4AGE 16V smallport valves next to the new oversized items.
 
Note: Cylinder head work is required to make these valves fit. If you require assistance with cylinder head work, please contact us and we can organise to help you out with custom CNC and hand port programs. Due to limited stock, please allow a 2-week processing time in addition to the standard delivery timeframes.