What is the correct size of the Spacer to install in an SIDI?
Posted by on 21 April 2018 07:01 AM
It depends on the type of SIDI V6 you have :

*If you haveĀ 
an LLT engine (early 3.6L SIDI V6, which you can fit extractors to this engine), then the highest you can go 6.35mm manifold insulator without the engine cover. The kit you would need for this would be MI621, which includes 2x 12mm spacers and gasket sealer.

*If you have either LF1, LFW or LFX V6s engine (which you can't fit extractors to this engines), then the highest you can comfortably go would be 12mm with the engine cover. The part number for this kit is MI628, which includes 1x12mm spacer, bolt pack and gasket sealer.

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