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GM NorthStar 2004 M11x 2.0 Headbolt P/n J-42385-2030

GM M11x2.0 head bolt starting in 2004 see specifications tab: 

GM NorthStar 2004 M11x 2.0 Headbolt P/n J-42385-2030

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GM NorthStar 2004 M11x 2.0 Headbolt P/n J-42385-2030

$524.72
GM NorthStar 2004 M11x 2.0 Headbolt P/n J-42385-2030
GM NorthStar 2004 M11x 2.0 Headbolt P/n J-42385-2030

Home / Shop

GM NorthStar 2004 M11x 2.0 Headbolt P/n J-42385-2030

$524.72
Model Number: J-42385-2030
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Categories: General Motors
Manufacturer: TIME-SERT
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  • Description
  • Specifications

GM M11x2.0 head bolt starting in 2004 see specifications tab: 

This is a first time repair.  Starting in 2004 GM changed the pitch from M11x1.5 to M11x2.0 head bolt. Kit all the tools and 10 insert P/n 112030 are included, 20 inserts are required to do entire block. This was know as the NorthStar PV8 the block will have two thread depths, 29mm upper bank and 45mm lower bank. This is measured from top of the block to the first starting thread  Instructions