Just got HSV headers

[LS1SS]

Ok,LSA headers are exactly the same as std VF V8 headers,ie cast iron four into one headers into std cats that are used across all std VF V8s,the reason being that LSA engines don’t have extractors is the exhaust is pushed out by positive displacement supercharging not scavenged or sucked out as on non supercharged V8s,the best bang for $ is to hunt down a set of HSV tubular headers,they come in two sizes,2 1/4 and 2 1/2 exit size,the later is the rarest,use these tubular headers with HSV cats bolted to your std system you don’t need a tune and stays in EPA regulations or go hole hog if you have $ and go four into one after market headers with cats to suit for more grunt and nicer noise but you will need a tune with more $.

 

[abuch47]

Appreciate it. Quite a few on the east but not adelaide. Want to keep it stockish for warranty maybe after would go a full custom system.

 

[Mattricho]

Hi all just a quick question I’m just wondering what’s the difference between the 325kw hsv tri Y’s and the 340kw ones??

 

[VF Ute]

317,325 are 2 1/4" 340 are 2 1/2"

 

[abuch47]

Finally know what I want. Now to find an old one in adelaide

 

[Mattricho]

Thanks @VF Ute and I’ll join the queue on trying to find some 340 R8 heads

 

[abuch47]

Sedan centre sections are shorter than ute centre sections right?

everything else fits perfect in stock location. So I could source HSV tri Y, cats and muffler from anything but need a maloo centre section?

 

[[paradox]]

Sedan centre sections are shorter than ute centre sections right?

everything else fits perfect in stock location. So I could source HSV tri Y, cats and muffler from anything but need a maloo centre section?

yep sedan and wagon are the same
ute is longer, and i think some of the hangers are in slightly different locations

 

[HB.SSVR]

Yep, got them from JHP.

Going to weld up some bungs at home tonight. They only cost me $24 and 15 minutes top drill/weld so why not.

I didnt know JHP sell these headers as i couldnt find them on their website. Is this a regular sold item?

 

[abuch47]

They've been up for a while but ran out of the 340s still have 325s. Wonder what the difference is? slightly smaller diameter outlet