LT1 & LT4 corvette valve covers
#17
That happened to me and I really thought I was halucinating. I mean one minute they fit to size and the next they were obnoxiously long. I was able to place them back in the slots, but I have a feeling they are leaking on the rear corners. Not sure if they are the right size before applied and stretch with heat?
Other than that, they are great valve covers - supposed to absorb some of the noise of the RRs. I have aftermarket studs, Comp 1.6 rollers, and aftermarket heads and it all fits under there, but just barely. Cranes RRs I had also fit under there. Anything more radical than what I have probably wouldn't fit though.
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Hmmm - oil is doing it huh? That sounds logical too.
Last edited by Kevin Blown 95 TA; 03-12-2008 at 08:06 PM.
#18
#20
I had to clearence them a bit for my pro mags too. I couldn't find my dremel, so I ended up using a saw...it was a tight fit but I got enough off.
Those gaskets are annoying though. I cut out an inch or two and cramed them back in the groove with some RTV.
Also FYI: Be very careful when torquing the studs. The metal is very cheap and I snapped one off in the head. Putting a helicoil in the very back stud hole under the cowl was a terrible project.
Those gaskets are annoying though. I cut out an inch or two and cramed them back in the groove with some RTV.
Also FYI: Be very careful when torquing the studs. The metal is very cheap and I snapped one off in the head. Putting a helicoil in the very back stud hole under the cowl was a terrible project.
#23
#24
I think there might be the standard 'vette covers and the LT4 covers (that are the part numbers in the top of this thread).
#25
#27
Yes, there are different LT1 and LT4 composite valve covers. There have been other threads discussing this very thing.
#28
I just installed 1.6 CC Pro Mags under my original Camaro LT1 covers without cutting them or anything. I just bent/flattened the shapes on the reinforcements inside the cover, intake side, so they fit between the rockers, and they went right in. They don't seem to contact much and if they do it's only a little on the rocker's cylinder axle which doesn't move anyway.
Does this sound right to you guys? Is there anything wrong leaving them like this?
I also had to bend / compress a little the chamber inside the cover where the breather / PCV plugs in (passenger side, the other hole except the oil filler neck).
We turned the engine a few times and felt the covers, they didn't get hit or anything, no sounds either except the ticking of the rockers
Does this sound right to you guys? Is there anything wrong leaving them like this?
I also had to bend / compress a little the chamber inside the cover where the breather / PCV plugs in (passenger side, the other hole except the oil filler neck).
We turned the engine a few times and felt the covers, they didn't get hit or anything, no sounds either except the ticking of the rockers
#29
The LT1 covers and LT4 covers are the same except the insides. The LT1 covers you have to modify by removing all the drip tabs, and the LT4's are composite and everything is already removed to fit the Crane 1.6's that came with the LT4. Just sold some LT4's not to long ago from my vette on the vette site. They gave me the complete run down.