Officers from the Organised Crime Partnership arrested 27-year-old Gleni Goleci on Pottery Road last month.
They searched the Hyundai vehicle he was driving and found 1.5 kilos of cocaine and approximately £20,000 in cash in a sophisticated hide in the boot. This was operated by a system of buttons which had to be pressed in a specific order.
Officers also searched a flat in Holland Gardens and found six kilos of cocaine and approximately £60,000 in cash and drugs.
A replica Colt air pistol and equipment associated with drugs supply was also discovered.
The 7.5 kilos of drugs had an estimated street value of £350,000.
Goleci, an Albanian illegal immigrant with no fixed UK address, pleaded guilty to the charges against him.
Andrew Tickner, NCA Operations Manager from the OCP, said: “Our primary purpose is to the protect Londoners from harmful offenders like Gleni Goleci.
“The serious criminality he was involved in fuels violence, intimidation and exploitation in communities.
“The NCA and Metropolitan Police continue to work in partnership to disrupt the organised crime groups behind drug trafficking.
“Our commitment to pursuing the most harmful criminals is relentless, and we will continue to bring them to justice.”