Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.

New Posts Contact us

Just Commodores Forum Community

It takes just a moment to join our fantastic community

Register

V6-V8 Engineering??

Jaiden2014

New Member
Joined
Jun 14, 2014
Messages
8
Reaction score
0
Points
0
Age
27
Location
Penrith
Members Ride
Holden vy v6 commodore
Hey Guys, this may be a silly question but I was wondering if I will need an engineering certificate if I convert my holden vy v6 commodore to a v8 (ls1). I've heard from some people that I have too but then I've heard from others that I don't have too because some vy's come straight from the factory with ls1's in them (SS). Anyway. Long story short, vy v6 conversion to vy v8. Do I need an engineering certificate? Thanks in advance.
 

Deuce

Super Stock
Joined
Feb 5, 2012
Messages
2,407
Reaction score
790
Points
113
Location
Meremere Dragway (as often as possible)
Members Ride
'94 VR SS V8
Hey Guys, this may be a silly question but I was wondering if I will need an engineering certificate if I convert my holden vy v6 commodore to a v8 (ls1). I've heard from some people that I have too but then I've heard from others that I don't have too because some vy's come straight from the factory with ls1's in them (SS). Anyway. Long story short, vy v6 conversion to vy v8. Do I need an engineering certificate? Thanks in advance.
Yes

1- characters
 

Jaiden2014

New Member
Joined
Jun 14, 2014
Messages
8
Reaction score
0
Points
0
Age
27
Location
Penrith
Members Ride
Holden vy v6 commodore
No worries. Any idea how much it'll cost roughly?
 

Deuce

Super Stock
Joined
Feb 5, 2012
Messages
2,407
Reaction score
790
Points
113
Location
Meremere Dragway (as often as possible)
Members Ride
'94 VR SS V8
You would have to ask a Local.
I have an idea of NZ pricing, but NSW could be far different.

I think that because V8 is heavier than V6, the expect suspension and braking to be uprated to suit, could be wrong though.


Why not sell V6 VY and buy V8 VY? same colour etc, except more power (and cooler sounding)
 

Jaiden2014

New Member
Joined
Jun 14, 2014
Messages
8
Reaction score
0
Points
0
Age
27
Location
Penrith
Members Ride
Holden vy v6 commodore
You would have to ask a Local.
I have an idea of NZ pricing, but NSW could be far different.

I think that because V8 is heavier than V6, the expect suspension and braking to be uprated to suit, could be wrong though.


Why not sell V6 VY and buy V8 VY? same colour etc, except more power (and cooler sounding)
Finance mate. I've got it for another 2-3 years yet + I've developed a special bond with the car haha yeah I know about the springs and brakes upgrade. Just need to find out how much the certificate will cost?
 

Big-Al

Banned
Joined
Oct 23, 2012
Messages
1,838
Reaction score
12
Points
0
Location
Aussie and proud
Members Ride
VY SS 5.7 M6
The brakes are the same on both the V6 and V8. Front springs are slightly different due to engine weight.
As the chassis did not come from the factory fitted with a V8, even if you were to put every single part from a donor V8 vehicle, you would still need to get the car passed by an engineer. Red tape BS I know but that's how it is.
It would likely be a lot cheaper to sell your car and buy a V8 however if you are like me you probably love your car too much to do that. At least you can make an informed decision.
 

Jaiden2014

New Member
Joined
Jun 14, 2014
Messages
8
Reaction score
0
Points
0
Age
27
Location
Penrith
Members Ride
Holden vy v6 commodore
The brakes are the same on both the V6 and V8. Front springs are slightly different due to engine weight.
As the chassis did not come from the factory fitted with a V8, even if you were to put every single part from a donor V8 vehicle, you would still need to get the car passed by an engineer. Red tape BS I know but that's how it is.
It would likely be a lot cheaper to sell your car and buy a V8 however if you are like me you probably love your car too much to do that. At least you can make an informed decision.
Yeah I'm thinking I might have to sell it mate. Costs too much for the engineering certificate. It's BS
 

hakhawk

smooth moderator
Staff member
Joined
Jan 18, 2005
Messages
6,333
Reaction score
112
Points
63
Age
34
Members Ride
BMW E21 320i, E36 "318IS" coupe
might want to read up on nsw modification laws.

in vic, if the engine was an option for that vehicle, no engineers is required, assuming any supporting suspension/brake/exhaust/emissions changes are done at the same time. just walk into vicroads and fill out the forms.
 

Husky

Active Member
Joined
Feb 5, 2013
Messages
985
Reaction score
31
Points
28
Location
Pakenham
Members Ride
VXII L67 Berlina Wagon and VEIISSV M6 Sportswagon
might want to read up on nsw modification laws.



in vic, if the engine was an option for that vehicle, no engineers is required, assuming any supporting suspension/brake/exhaust/emissions changes are done at the same time. just walk into vicroads and fill out the forms.
This guy is spot on. Also if nsw is different, some places that have done the conversion before can sign off the engineering without need for testing.
 
Top