when u buy the ls6 style pipe that only use;s the front 2 what do u use to block off the back 2

 

They ( SPDC ) sell little block of plugs. They are identical to the plugs in the front but don't have the bar between them. Also for bolts, I found the coil pack bolts fit perfectly in there as well.

 

u got a link to them

 

A quick search showed this thread from 3 days ago:

https://ls1tech.com/forums/showthrea...79#post3100579


It has the part numbers that you need. GMPD (GM Parts Direct) has them but isn't a sponser.

SPDC is a sponsor: http://www.sdpc2000.com/cart.asp?act...tart&catid=873 should and they should be able to help you out as well.

D

 

I put another LS6 type pipe in back, and ran a 1/4" hose to the front, connected it with a T. Now I have LS6 with cooling front and back. I think that is important because trapped air bubbles can lead to hot spots in the heads.

 

cALL me stupid but i cant find them on there site

 

Yeah, they were designed for a reason. Whats funny is that it looks like I actually have the room for the LS1 style pipes under my fast 90 intake.

 

anyone got a direct link to the item i cant find it on spdc

 

The GM part number is 12570678.

 

Yeah, you enter the GM part number in the search box. Dont forget the gaskets. The plugs and front pipe come with orings. I'm not sure if these orings replace the oval gaskets that I see in the parts list and service manuals (nobody ever mentions the gaskets)

 

I just posted about this a couple days ago. This is the correct numbers for the items:


plugs GM#12563325
pipe GM#12568478

 

12568478 was replaced by 12578838 - Pipe Assembly

 

thats funny seeing as how I just picked up mine on thursday.

 

Part number 12578838 was superseded by part number 12602544. searched at gm parts direct

 

I think i can end this pretty quick.

UPDATED PART #s
front coolant pipe - 12602544 - $36.05
rear plugs - 12602540 - $6.64 per
gaskets - 12551933 - $6.88 per you need 4 total.
bolts are anything you can find in a M6 x 1 x 30.

That is all.

those are up to date as of 3 mins ago

plus look at how old the posts are...

 

why not just cut your ls1 coolant lines and silver the ends shut. If you don't know how any welding shop can do it for 10-20$. mine was twenty and works just fine. 8,000 miles on it.

 

So are those gaskets the little oval gaskets that go under the front pipe and rear plugs? When I ordered my pipe & plugs, there was no PN for the gasket and the pipe & plugs came with little rubber o-rings.

 

those little o rings wont work like you think they will. They are on the stock pipes as well that come on the cars. you will need the gaskets

 

That's what I thought, I could not ever find the part number for those gaskets. Thanks. I take it you guys have these in stock regularly?

 

all day everyday...