mcprodesign

All freshened up by Young Performance. Just need valve springs and rockers for whatever cam you are going to run.
$1000.00 or best offer!

mcprodesign

I have the stock valve springs and rockers that go with the heads too, and valve covers, if that helps. These heads need to be gone.

mcprodesign

Surprised that no one has gotten these heads for me yet. I paid a grand for them as they sit. They have Merc 575 SCI valves in them and they're ready to go. Also you won't have to wait four months to get a set of heads done. I am still open to offers.

mcprodesign

Still for sale. I can have the springs and rockers checked also. These heads are ready to go. I paid a grand. They should be worth something to aomebody. Merc 575 sci heads

twistedfun

What size are the chambers? I need a set of rectangular port heads and these may fit the bill. Just need to know what my final compression ratio will be on a 454 mag.

mcprodesign

14097088 454,502 Rectangle port Open Chamber 118 cc

mcprodesign

Open to offers!! Heads are ready to go!

Tigweldersm

iTrader: (5)

Are they SS valves?

sparky24

you want ss intake inconel exhaust..,. impossible to tell without a receipt

mcprodesign

yes they are stainless valve they were built by Eddie Young . They are mercury racing blue motor heads