Jim_PA

iTrader: (9)

I bought a Lunati valvetrain kit with new retainers, springs, seals and seats.

The 243's have the one-piece seals, and they do look a little different from intake to exhaust. It's more in the design of the base of the seal/seat, where the shoulder of the retainer is a little taller than the other. The size of the hole looks the same.

My Lunati viton seals all look to be the same size and color. Has anyone run into this before? Is it OK to just use all of the same size seat and seal? Or is there something I'm missing with the original 2-size valve seal design? The Lunati seats/seals are 2-piece design, but from what I understand, you just oil up the seats and tap on the seals.

Thanks

vaticano

iTrader: (8)

Just use what Lunati gave you and you should be fine.

Jim_PA

iTrader: (9)

I was figuring that, but wanted to make sure nobody saw any red flags with what I have

orangeapeel

iTrader: (18)

Should be all there is to it. Machine shop would probably press them on. I dont know what kind of pressure they require to seat properly though.

vettenuts

iTrader: (4)

Install the seats first and make any checks with spring height that are required before installing the seal. Tap on the seal gently with a sock or installation tool. You will be able to tell by the sound when the seal is bottomed.

Are the new springs beehive springs?

Jim_PA

iTrader: (9)

No, they are just Lunati double springs going on new GM castings.

TooLateVTEC

iTrader: (2)

Do what vettenuts said, but use a socket instead of a sock to install them LOL. The right size socket and some light taps with a hammer will get the job done.

Im sure he meant socket, just forgot a couple letters.