different head bolts on mk1 an 2 novas

[dan23]

my 1.4 sr (j reg )has kind of splined star shaped bolts
my mark 1 1.3 engine has normal hex head bolts i havent taken the head off yet but does any one know if you can use the standard hex heads on mk2 engine or is thread or lentgh different

[Ste L]

cant see there being any difference, but you cant re-use headbolts, though

[Jon_nova1]

no difference at all, they're both the same length with the same thread

[beavy69]

Does that mean you have to change them every time you remove a head like you would a gasket?

Or do you mean that you cant transfere them to a different hole/engine?

Why can't they be reused?

[Adam]

Yep, you have to change them everytime.
They are stretch bolts, they stretch to reach the correct torque.
Once they have stretched, they wont tighten properly again

[Stuart]

the splined ones are simply VXL's newer bolts.. eg they arent making the hex head ones anymore and its only te odd pattern part people that will supply them too.

[beavy69]

where do you get the socket from to remove those star shaped bolts?

ta

[Adam]

Motor factors, B&Q, any tool shop should have them.

[Stuart]

halfords own or draper ones are good.

Got a rail of draper star bits for ?25 (good value imo)

[dan23]

i used a normal hex head it worked as the bolt heads are hex shaped but ju are splined too

think it was 15mm or some wear near