Hi there..

I am almost finished with my rebuild on my chevy 1987 LG4 engine.

I have done a few modifications and installed summit racing spring and retainer kit on my valves.

But I am curious on one thing. My stock valves had different seats and seals on the exhaust and intake ports...The summit kit has the same on both intake and exhaust.

And another thing is that my valves has 2 groves, And my kit only has: Retainers, locks and seals for one grove valves.

Will this mess up or what?...I have installed it already but I am just unsure, because when I removed the old springs I just noticed the difference.
Hope I can go for the kit i have installed..

Stock valves have two grooves, one for the keepers and one for the useless O-ring seal. The positive seals like the ones in your kit are much better.

Agreed with above.

Also, check your exhaust side spring installed height. If you are ditching the stock-type exhaust side rotator/retainers and replacing them with standard non-rotator/retainers your spring installed height will open up by about 1/16" (because the exhaust spring pockets are machined deeper to make up for the added thickness of the rotator/retainers). If that's the case a .060" spring shim in the exhaust spring pockets will bring your back up very close to stock installed height.

Ok..Thanks for quick replies here..

I will check the exhaust heights today and measure them, but I think they are about the same height as the intake valves.
The reason why I am changing springs and everything is because of my new cam. The new cam has a much more higher lift than the stock "peanut" cam.

My heads are the .081 cast iron heads and they are in stock condition.
Now I have ported and done some gasket matching on them so they will flow a little bit better.

Hey Damon...I checked yesterday this installed height on the exhaust side springs and you were right. I checked this of course after I mounted the heads on the engine. I don't have any spring shims availible since I live in Norway. I have to order from US and that takes some time.

I am just wondering, will this affect anything to the engine running?
I mean. The only thing is that groove that the locks sits in, is machined just a little bit higher on the exhaust valve so the spring height is a little bit different, but isn't the pressure on the springs enough anyway?..
Just something I wondered...

Depending on the spring rate, you're going to lose about 15-20 lbs. of spring pressure across the board from that .060" difference. So if your springs are rated at, say, 100 lbs. of pressure on the seat they're only going to give you 80-85 lbs. If you're building for performance, I'd fix it.

Ok..I fixed the problem today..Yesterday I made myself some tools that I managed to get the springs of without taking the heads of again.
I made myself an adapter that I can use on the spark plug holes and use compressed air from my air compressor to keep the valves closed..
Then made this "fork" kind of tool out of some metal so I can press the springs down while I am removing the locks and then the springs.

It isn't actually easy to get some valve spring washers for V8 engines here in Norway so I had a look at the workshop at my job. I am working at Rolls royce, so I am building propellers.

We had some washers that are about .061 thick and about 1.51" outside diameter. The inner diameter is about 1" so I think theese will be the closest match for me...Thanks for this response anyway. If you haven't mentioned this I wouldn't have seen it and mounted all parts together..
So thanks Damon..