need GM part # for the lt4 valve covers, and the fuel rail covers , and the studs, looking for these parts , any suggestions where to get the best price

 

http://wilson.2ya.com/lt4valvecover.htm

Get them from Jason Cromer, but they have gone up in price since that web page was made. (more like $186 for all parts needed)

 

this may be a stupid question, but what's the difference between these and the stock valve covers?

will these work with 1.7 RR's?

 

It's pretty easy to see what the physical difference is by the pics in the link. The attaching hardware uses a stud and large head nut. They are made out of a composite material that helps muffle roller rocker noise.

I don't know of anyone using 1.7 rockers.

 

10224936 fuel rail cover
10224935 fuel rail cover
one is left one is right, not sure which is which though, it only takes 30 seonds to check prices at GMpartsdirect.com to compare...