Vote 428 or aluminum 427FE??

[Excaliber]

ERA Chas says, and I quote with all due respect (NONE),

Ernie,
With all due respect, some things you say (whether by design or misinformation) are just not true, heresay, or junk science.

Your above post is filled with miss leading statements and BS.

First of all this isn't a pissing contest, it's a discussion, but with the attitude you bring to the table, yup, it's turning into a pissing match alright. So CALM DOWN, yes, I'm shouting.

There are exceptions to all the rules. Some center oiler 427's are notched, some side oilers aren't, most are. To bad your side oiler isn't, looks like you got some bad information and a non-standard side oiler, bummer. I reckon your heads will "flow enough" and a notch is not required for your expected horse power output. OK, thats fine with me and apparently Mike. Those intake valves of yours are certainly more shrouded than if you had the notched block. Oh well...

No question you gotta notch the smaller bore FE's to clear the big valves (390-428). Like I SAID, and now repeat, High Rise heads will fit a 427 bore, center or side oiler, which would infer, notched or not as the center oiler is NOT typically notched. There are many that believe FORD put the notch in there for a reason BEYOND valve clearance. Maybe some don't buy that, fair enough, but it sure has some logic to it.

Shelby Stage II heads will flow 293 cfm(293.8 at 500 lift to be exact). Your report shows 320 cfm, but fails to mention at what LIFT???? .900? a 1000? CFM don't mean squat without the details, just like dyno numbers don't mean squat without the details. Oh, and I certainly trust whatever Shelby has to say about his product (and pigs fly).

Where did I say how much MY High Rise heads flow? I didn't, so why are putting words in my mouth, or are you just trying to make this a pissing contest? My compression was only 12.5 to 1, not 13. Getting 700 or 800 horse out of a 427 is easy, getting it to LIVE and supplying a WARRANTY with that is the hard part! That's why a typical build is 600 horse (pick a number, any number you like) and not 800.

It's amazing to me that many of you guys actually think the Thunderbolts of 1964 were making a mere 425 horse. That's just crazy, most everyone from that era readily acknowledges an honest 500. The "debate" begins around 600 and more, as some claim they were making. Looking at the ET and Trap speeds of some of the top FE contenders into the mid to late 60's, those high horse power numbers are certainly valid with a 1/4 mile calculater. Using original parts!

You think TASCA Ford or Holman Moody or the NASCAR guys were just going to roll over and accept whatever Ford offered for an FE? 425 horse power? Gimme a break, man I gotta bridge for sale and a dozen pigeons right here ready to buy.