5.3 have two different style head bolts and some have three different style head bolts?

Tiny
WMBJAB5
  • MEMBER
  • 1999 CHEVROLET SILVERADO
  • 224,000 MILES
From reading in 2004 some 5.3 have two different style head bolts and some have 3 different style head bolts. There is not a clear explanation as to when this occurs and in what engines. I am trying to order all parts prior to me going home after my work time is up offshore. Is there any way that we can differentiate this issue? Being it is a 1999 truck and a 04 5.3.
Do you
have the same problem?
Yes
No
Thursday, January 19th, 2023 AT 4:49 AM

1 Reply

Tiny
RYAN L
  • ADMIN
So, for a 2004 LM7 engine the head bolt length specifications are:
(10) M11 x 2 x 100, (5) M8 x 1.25 x 45

Check out this Summit Page for more info: https://help.summitracing.com/app/answers/detail/a_id/4818/

Thank you for using 2CarPros!

-Ryan
Was this
answer
helpful?
Yes
No
Thursday, January 19th, 2023 AT 2:56 PM

Please login or register to post a reply.

Sponsored links