I would go with Viagra

Dock

 

i used the gravity method. didnt have any issues with dropping a valve. yes got lucky but thats what i did

 

???? What is this method?



That rope idea is funny but it just may work..... hahaha

 

I was going to use the gravity method but I couldn't figure out an easy way to hang my truck upside down.

I didn't use air or anything either and all but one stayed up. 1slow01z71 thought I was crazy when I couldn't get it back up with a pen magnet. I slowly rotated the engine and let the piston push it up. It was a gamble but it worked. Note to self: use air line in the cyl next time. The bad thing was I had the adapter to air up the cyl, I was just too lazy

 

remove the old spring and retainer. grab valve and pull it up right to it stops. then install new spring/retainer. and be fast with the keepers. for me it worked for others you may drop a valve

 

The only way to change valve springs in an LS1, IMHO. Crane Cams style valve spring compressor, and compressed air. I just swapped out all 16 in about 30 minutes. No problems.