Stock LS1 swap dyno run

[bmk]

Haha yeah those sikky header are know where close to stock, those are badass long tubes I wish I had the cash for those. I have a pretty big cam with a 112lsa in my 6.0 I hoping that the 1 5/8 sandersons with the 2.5 true dual all the way back will provide enough scavenging..... we'll see.

[Madhatter]

1 5/8 is pretty small. I reckon id be running 1 3/4 at the smallest on a 6L with anything resembling a decent cam. Id probably actually step up to 1 7/8 primaries and 3" twin if starting from scratch.

[bmk]

Trust me I would lover something bigger, but no one makes a 1 3/4 or 1 7/8 that would fit. The only option would be something completely custom.

[Zach33]

Call up Sikky they'll hook you up!

[bmk]

Last Time i did talk to them they told me they would only sell the headers with the kit.

[Madhatter]

Trust me I would lover something bigger, but no one makes a 1 3/4 or 1 7/8 that would fit. The only option would be something completely custom.

What actually gets in the way? Strange that they don't make much over there? You could make a 1 3/4" set in the same design as a 1 5/8" set pretty easily. They sell shorties here with bigger 1 3/4" primaries for our commodores designed to bolt up to stock systems like the factory cast manifolds. Very compact.
Example

http://www.hmheaders.com.au/shopexd.asp?id=147

http://www.pacemaker.com.au/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=132&virtuemart_category_id=27

[Zach33]

Last Time i did talk to them they told me they would only sell the headers with the kit.

Hmmm, might be that they can't guarantee fitment without their mounts. It is a VERY tight fit.