Welcome back to the 1JZ drift engine build series. Today we modify the cooling system lines on the block and eliminate the unnecessary heat soak from the throttle body, oil cooler and modify the heater core outlets.

Here are the parts used for the modifications:

https://www.summitracing.com/parts/RU...
https://www.summitracing.com/parts/FR...
https://www.cxracing.com/PLATE1JZWA...

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