Looking to build my 2nd 261 Chev. 6. The first being a good hi-perf street engine. The second is going to be a street strip engine for my 30 model A truck. I need advice on how to mill an 848 head and deck the block. I am looking for 9.5:1 / 10:1 compression.
Are you doing this yourself ? With your own machining equipment ? Honestly, any engine machining shop will have the prints to do whatever you wanna' do, on most any common engine rebuild. I say common, only in reference to being an older American engine.....in lieu of a Lamborghini engine. You being in New York, hell....even a Lambo' engine may be common enough. In any case.....search is your friend.... http://www.jalopyjournal.com/forum/search/5301401/?q=blue+flame+head&o=relevance
I know that these heads will take up to about .080 of cut, provided it hasn't been cut before. The other oddity with these is that the intake valves have to be sunk the same amount as the cut. I'm writing this from memory, as if I have time later today I will scan and post an old article from Street Rodder that Pat Ganahl wrote on '75 or so that shows this deal step by step.
Dude. Seriously. Just use the SEARCH function in the upper left corner here. It's a magnifying gl*** icon. Type in Blue Flame whatever you want. Did you not click on the link, and see the pages offered on just the head ? Quite a bit of interest here with that. I don't believe I have ever been yelled at here...in capital letters.....eek ! Nor do I need an education about New York being a state and not a city. Re-read what I typed, and I asked two questions, and offered the same advice that I have typed again. There is plenty of information here already. There are plenty of non-old timers that have the same, and probably just as many said old timers that would probably punch me out calling them the same. There are blueprints available for nearly every American engine build imaginable.....which is what I was referring to with the shop question. Most shops that do this work have them available, or can get them....if not already versed in the engine build in question. I'm sure someone will be along to add to the information already here. Dunno' if I need to capitalize that for ya' or not. Good luck blueflame http://www.jalopyjournal.com/forum/search/5312678/?q=blueflame&o=relevance 848 search http://www.jalopyjournal.com/forum/search/5303893/?q=848 head&o=relevance&c[node]=57 stovebolt build http://www.jalopyjournal.com/forum/search/5303922/?q=stovebolt build&o=relevance&c[node]=57 blue flame head http://www.jalopyjournal.com/forum/search/5301401/?q=blue flame head&o=relevance That's the best part of this place. Getting lost in the catalog reading.....so to speak.
It's been a few years, but to get a C/R a little over 9:1 on my 261, with a finished bore size of 3.800", I had .065" milled off a 848 head, with the intake seats also sunk .065" and had .020" milled off the block to get zero deck height with my particular rod and flat top piston combo. To get up around 10:1, you may need to use custom "pop up" pistons that have a lump where that exhaust pocket is.
You do know that there is a national club devoted exclusively to these types of early engines: http://www.inliners.org/ None of this is new to these guys. Think about joining. It will more than pay for itself.
Thank-You to most all who posted, Member 270ci answered my question, and that should end this thread. Thank-You again Robert J. Palmer
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