The drill included in the
BIG-SERT kit oversize's the original head alignment dowel
hole in the block. The original OEM dowels would fall thru after Big-Sert
Insert is installed.
Universal BIG-SERT head bolt kits include 2 dowels - you need to specify which one you
would need. There are 2 different sizes available to choose from for the M11x1.5 kits :
Toyota / Honda style .530 diameter p/n 66231304
General Motors style .617 diameter
p/n 662J-42385-508BS.
The head
alignment dowel aligns the head to the block at the time of assembly
there are normally
2
head alignment dowels used per side
of the block.
Note:
Some vehicles may not need dowel e.g "Nissan" as the dowel is NOT located in the head bolt hole,
but off to the side.
Subaru dowel
p/n 66211126
upper diameter size .579 inches or 14.7mm (Kit
p/n 66011125BS M11x1.25)
Notes:
Head alignment dowels for M10 BIG-SERT universal head bolt kits ( 2 sizes available )
Special dowel
p/n 6627588BS
diameter .530 inches. (used in BMW)
Special dowel
p/n 6626255BS
diameter .550 inches. (used in Toyota and Honda)
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