Time-Sert J-42385-500BS Northstar 4.0/4.6 Head Bolt Kit, M11x1.5 Oversized
TIME-SERT Kits Have Been Tested and Approved By General Motors. There is no other company approved for these repairs in aluminum blocks.
M11 X 1.5 Northstar Headbolt Big-Sert Kit 4.0 / 4.6 V8 – Second Repair Oversized
Use After Helicoil Failure
Kit Includes 10 Inserts- Part # J-42385-507BS (20 required for the entire block)
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