I did a search and all I found was ppl talking about other covers buy and way to mod their stock ones. I know there is a set that fit but I can't remeber what they were. Thanks and sorry if this is repetive....

 

I believe that the GMPP LT4's do....have seen them on several cars with stock valve covers.

 

Yep, they sure do. I had the stock covers on mine for a few months. I have the LT4 covers now, and I like them allot better. They quite down the valve train noise.

 

I have Crane 1.6's under stock valve covers (no mods to covers)with thick silicone gaskets. No problems.

 

Where did u get thick gaskets???

 

I ordered the gaskets and the roller rockers from Summit. Just check with the sales person and ask for the reusable gaskets. A correction on the material: I think they are neoprene. I thought I had the receipt with the part number but i must have misplaced it.

 

The OE gaskets are re-useable. I had mine off like 10 times.

 

But are they high enough to make the stock cover clear 1.6 RRs??

 

They did with mine. Might just depend on which ones you use.

 

With stock cylinder head decks and block deck I didn't have problems with my 1.6:1 CC ProMag rockers hitting the top of the cover. The only person I have heard with this problem had decked heads and block and probably had different length valves and pushrods. Are there more people with this problem The biggest problem, at least with the ProMags, is the reinforcement webbing in the covers hit the trunions on the rockers. You can either cut the lip off of the supports or crush them with a vice grips where they pass by the rockers. If you need a little extra height you can also use cork, SBC, perimeter bolt valvecover gaskets. Just cut off the tabs and stuff into the stock covers.

 

So the GM LT4's fit with out moding the stock cover?

 

I'm running 1.65s under the stock valve covers.

You simply have to clearance them a little by cutting them.

Mike

 

Arethere anything unique or special about LT4 valve covers? What do they cost?

 

I know they are plastic, quieter, and have a high RR clearence.... I just can't afford them so I need something fits.

 

Comp Cams Pro Magnum 1.6 roller rockers non selfalign under stock valve covers... cut the braces...