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Seahawk 2000

05-03-2013 08:42 PM

HP500 Cylinder Head Bolt Torque Spec

What are they? 75? 80? 90?

abones

05-03-2013 08:48 PM

FIXX	05-03-2013 08:53 PM

fixx

iron head step 1-4 20,40,60 final 80 then go over them again and again until their all the same..

alunimum head short bolts 65 and the med and long 75..

Seahawk 2000

05-03-2013 08:57 PM

Quote:

Originally Posted by FIXX (Post 3918527)

iron head step 1-4 20,40,60 final 80 then go over them again and again until their all the same..

alunimum head short bolts 65 and the med and long 75..

Do they need to be retoqued again after first warm up?

IRWIN

05-03-2013 10:03 PM

I torque them to 75Ft.Lbs with oil under the head of the bolt. I do not re torque them after they leave my shop.

FIXX	05-04-2013 02:24 AM

fixx

Quote:

Originally Posted by IRWIN (Post 3918582)

I torque them to 75Ft.Lbs with oil under the head of the bolt. I do not re torque them after they leave my shop.

you know chris nelsen?

IRWIN

05-04-2013 05:19 PM

Quote:

Originally Posted by FIXX (Post 3918677)

you know chris nelsen?

Yes I worked for kris Nelson for a few years before starting my own shop Fast Forward Race Engines.

Griff

05-05-2013 01:28 AM

Quote:

Originally Posted by FIXX (Post 3918527)

iron head step 1-4 20,40,60 final 80 then go over them again and again until their all the same..

.

Thats is what I have done also with the stock heads and head bolts using 30wt oil.

If you are using ARP bolts and/or their thread sealant lube, then the torque specs need to be adjusted to the mfg specs.

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