Headbolts

[gtsnissanb]

I've just read on auto data that I don't need new ones when changing headgaskets, and as I'm doubling headgaskets to lower compression will I need new ones? Or is this another auto data fail? It said my 3sgte engine was interference type when it isn't! To prove my point I removed the belt and turned the engine over lol so I don't always trust what it says

 

[Scott]

OEM headbolts are meant to be re-useable aswell as better than ARP bolts! Dunno if that parts true but Nissan over engineered their engines so i think you should be fine to reuse them.

 

[kara]

Oem are Better in what way ?

 

[gtsnissanb]

OEM headbolts are meant to be re-useable aswell as better than ARP bolts! Dunno if that parts true but Nissan over engineered their engines so i think you should be fine to reuse them.

Ok that's what I wanted to know thank you

 

[davew]

OEM headbolts are meant to be re-useable aswell as better than ARP bolts! Dunno if that parts true but Nissan over engineered their engines so i think you should be fine to reuse them.

The bolts are re-usable on the K10. Many of the older Japanese engines, from all marques didn't use stretch bolts.
K11 uses stretch bolts.
I didn't know ARP did a replacement bolt for the K10 (in any area) do you have a link?
In which area did Nissan "over-engineer" the K10 engine? In my opinion its a well engineered engine but there's nothing that's overdone. It is arguable that the absence of stretch bolts the thing is possibly under engineered.fwn

 

[davew]

Further to the above - I would suggest that fitting 2 head gaskets is a bodge that's likely to fail quickly! they are not the best of things when theres only one fitted!
If you need lower comprssion then do something with the pistons - or even the head.

 

[gtsnissanb]

Further to the above - I would suggest that fitting 2 head gaskets is a bodge that's likely to fail quickly! they are not the best of things when theres only one fitted!
If you need lower comprssion then do something with the pistons - or even the head.

Yep I never said it wasn't a bodge, but it's not like I'm selling it I'm trying it out to see, as I've heard of it working in other n/a - turbo cars, I'm not going for an expensive forged build I'm just playing around with it
If it blows it'll take 10 mins to swap out lower the boost and run a single gasket
But while the heads off I may as well grind a bit off in the combustion chamber

 

[Scott]

The bolts are re-usable on the K10. Many of the older Japanese engines, from all marques didn't use stretch bolts.
K11 uses stretch bolts.
I didn't know ARP did a replacement bolt for the K10 (in any area) do you have a link?
In which area did Nissan "over-engineer" the K10 engine? In my opinion its a well engineered engine but there's nothing that's overdone. It is arguable that the absence of stretch bolts the thing is possibly under engineered.fwn

I dont think ARP do but i was just saying that OEM in some cases are better.

I suppose over engineered is the wrong word. More like Nissan engines were very strong compared with others.

 

[frank]

over-engineering FTW eh scott CG,s are proven to handle 2 x stock power with stock internals