First Generation Firebird-L Mailing List .........................................................................
Welcome aboard...you`re up there with Brent..nice and chilly! lol..And I thought it was cold here the last few days in Texas! (I`m FROM Sweden though, but for that reason!) as for heads , find some with big valves.....the 5 C `s are fairly un known ,so you can easier get them cheaper...I bought a set from NY a few years ago, and then had them milled to 88CC....for my `72 400 engine, I think it comes out to +- 9.2 CR on mine..paid $150 for the heads (they had been finished up/re built a few years earlier, and not installed so a little surface rust on them) , shipping $90, I added 1.65 Rockers also, (drilled out the holes for that to 5/8")..cleaned off , milled , drilled that cost me another $350.... but I`d suggest not to put 455 badges on....leave what you have, be "sneaky"...lol Bjorn 69 vert/HALF member/Houston ,Tx +++++++++++++++++++++= Subject: Hello and head question. From: "Dion Dolter" <[email protected]> Date: Mon, 14 Dec 2009 18:16:10 -0700 Hello from chilly Medicine Hat, Alberta, Canada (a high of -25 C today that is about -13 F). My name is Dion and I have to confess I've been "lurking" in the background receiving the great emails from this list for a couple of months now. I have owned a medium blue 68 convertible with a 1974 455 for a little over a year. I need to figure out how to get pics onto my FGF profile, but all in good time. It is on Kelly R. 's Alberta Firebird web site under friends rides. Can I paste that link here? After all that I do have a question, My 1974 455 has the stock 4X 114cc heads. I think the c.r. is around 8.2 : 1. I have a good lead on some 87cc "15" heads that will put the cr into the (approx) 10.5 : 1 area. The only problem is they are the smaller (1.96" intake 1.66" exhaust) valves. So my question is this worth the head change? The 1970 455 B-body big cars with these heads made 360 HP and close to 500 ft. lbs. My low cr heads are either 215 or 250 HP (not sure). I want to put the 455 badges on the hood but I don't seem to have much more power than a worn out 350. Could more power be as easy as a head swap? Any opinions would be much appreciated. Thanx ------------------------------------------------------------------------ Submissions to Firebird-L: <[email protected]> Unsubscribe from Firebird-L: <[email protected]> Help: <http://FirstGenFirebird.org/firebird/Firebird-L.html> Classifieds: <http://FirstGenFirebird.org/ubb/> Owner Pictures: <http://FirstGenFirebird.org/show/>
