The only one i have found is the Moroso Spark Plug Air Hose Kit Part Number 62385

http://www.summitracing.com/parts/MO...5/?image=large

I am just posting to see who has used this or a home made one like it to change out their springs? i know its a old school method, just wondering if anyone has attempted on the lt1?

 

CreatiVe2:
It's not necessary. As long as the piston is at TDC and the valves are closed they can be changed without difficulty. On the right stroke, 1+6, 8+5, 4+7 and 3+2 are "paired". The "small engine" screw type valve spring compressors are small enough to work on all single springs including 7+8 under the cowl. ISTR either Crower or Crane make a tool (~$70 ?) that's a small plate that bolts on to the rocker studs that compresses any kind of springs and has cutouts for the locks. It's a plain piece and some people have made their own. Good Luck.

 

thats what i have heard. i got this tool (crane dual)
http://cgi.ebay.com/ebaymotors/ws/eB...#ht_500wt_1374

and will be doing the job inside the car. i just need a micrometer for my dual spring retainers now.

 

I bought a similar air hose kit, and it was too much of a PITA to use.

 

I couldn't get the air hose on my holes in most of the cylinders unless I dropped my headers which is a giant pita. I used the crane tool and similar ones that I made a couple times with the pistons up - that work best.