Vote 428 or aluminum 427FE??

[Excaliber]

Well with so much data and number crunching around here it is easy to get confused for any of us. Which is why it's important to keep it a discussion, not a personal bashing opportunity. I don't know what MY high riser heads flow, I DO know they are worked over, but stop short of filling in the lower port area as might be done today for even more flow! Worked over in a manner like Tasca Ford, or Holman Moody or NASCAR would have done "back in the day". Without CNC machines and epoxy and 50 degree angle valve jobs and such. As such, I do believe the high riser iron heads of "yester year", with moderate work, are STILL to this DAY a valid comparison to modern heads with similiar work, call it "Stage II" perhaps.

Just like we often hear how the Cobra is "slow" compared to todays modern cars. But wait, WHAT modern cars are those we speak off? Inevitably we end up comparing a 40 year old car and it's old time tech to a HANDFUL of modern ultra high tech cars and the comparison is favorable, all things considered. Sure a modern Vett is faster, DUH, the fact we can even make that comparison speaks volumes about the Cobra!!!

Same for those old iron "back in the day" heads. Sure modern Blue Thunder's outperform, but the comparison is valid. Those "old heads" aren't bad, especially when you apply todays modern porting techiques! 1967, tunnel ports, STILL hard to beat, for instance. High Risers, with expoxy on the floor and raised ports, not bad at all. It would be a mistake to under estimate their potential, today or in 1965.

KC's basic FE offering today at 19K and change makes decent power, BUT, it surely leaves a bunch of potential power on the table. It's a low rpm hydro roller for one, low compression as well, put a solid roller in it, up the rpm, raise the C.R., there is a lot more power to be had. Do you need that more horse power? Not really, it has "enough" for good street manners, long life and excellent performance.