head bolts replace?

[myown]

my 1990 nissan 240sx is getting a valve job done does it s head bolts need to be replaced

[NISTECH]

it would be a good idea. better safe then sorry

[myown]

I ordered them to be safe, I was wondering what the factory specs on the head bolt were, I have a Chilton manual and it has no information on the subject that I can find.

[U12 2NR]

Step 1. 22 ft.lbsStep 2. 58 ft.lbsStep 3. Loosen All boltsStep 4. 22 ft.lbsStep 5. 54-61 ft.lbs

You also have to Loosen and Tighten bolts is a very specific order. You can't just tighten whichever bolt you want.

[myown]

the factory specs on the need to replace the bolts is what I really would like to know about mostly

[U12 2NR]

thought you meant torque specs.

there's not such thing as factory specs on "need to replace bolts". Head bolts are put under alot of stress and the threads become stretched. Use new bolts.

[myown]

Thats what Im doing I just started messing with these little cars