Mega-flo

Mega-flo Harley-Davidson Engine and Cylinder Head blueprinting and related machining. An American Independent Since 1980.

Harley Davidson high performance cylinder heads, engines, shortblocks, engine related machining.

MEGA-FLO46 years as a true independent American Craftsman. Engine and cylinder head building and blueprinting for speed,...
08/26/2026

MEGA-FLO

46 years as a true independent American Craftsman.

Engine and cylinder head building and blueprinting for speed, endurance and reliability.

Since 1980. American V-Twins only. I never used to work on anything else!

I've got no other social media account other than FB and I normally don't spend THAT much time actively connected to it....
08/23/2026

I've got no other social media account other than FB and I normally don't spend THAT much time actively connected to it. Most of the time I do spend messaging and posting on FB is from a desk top computer in my workshop office space. My phone is pretty much just a business phone, and it stays on my desk in my workshop when it is not being used to directly communicate with someone. I certainly don't go cross-eyed, gazing intensely at that tiny screen for endless hours as I've watched some people do, because too much of that I think can turn your brain into mashed potatoes, destroying your ability to mentally focus and essentially transforming you into a Zuckerberg Zombie!

But today I did spend about a half hour scrolling through my "feed" (sounds like a term reserved for junkies, don't it?) and while being bombarded with post after post of some of the most meaningless content I've ever seen, there were no less than FOUR different cam manufacturers or "cam designers" or whatever you want to call them, claiming to have developed the most powerful cams in the world, or something akin to that, for your Harley-Davidson!

You know what that means don't you? At least THREE of them are lying!!!! 😂🤣

And with that said I'll end this jestful mini-rant and my small addition to all of the other worthless content on the Zuckerberg multi-ring circus!

Have a gr8 what's-left-of the weekend!

MEGAFLO. 46 years of full-time American V-Twin engine and cylinder head building experience behind every cut!

Basics.In the initial stages of modification many cylinder head assemblies can benefit engine performance substantially ...
08/19/2026

Basics.

In the initial stages of modification many cylinder head assemblies can benefit engine performance substantially by raising the coefficient of discharge through judicious use of valve shape, valve size and seat geometry and other very intricate details primarily in the immediate valve seat areas. There is not always the need to aspire to the grind'em up, hog'em out big peak number mentality!

Add in material selections, internal components, machining and assembly practices that strongly favor long term durability from a craftsman who has been in business long enough to have SEEN
his work provide decades of real-world service and there you have it. My ProPrep2 cylinder head port and blueprint package to some late Twin Cam SE110 castings.

46 years of full-time American V-Twin engine and cylinder head building experience behind every cut!

Wow. I haven't seen any of these in a good while."That's a nice engine that you have hanging on the back of those carbur...
08/07/2026

Wow. I haven't seen any of these in a good while.

"That's a nice engine that you have hanging on the back of those carburetors son"

One small piece of the puzzle (but no less important).When working on the early spur gear type pumps, does anybody else ...
08/06/2026

One small piece of the puzzle (but no less important).

When working on the early spur gear type pumps, does anybody else measure this out and then tweak the gear protrusion to get it within a specific range? If so, where do you like to see it? It's one of those unpublished dimensions that I forget where I picked it up but adhere to it on every early engine build that goes through here.

Up on the bench for assembly are another set of S&S B2 full race prep. Positively not for the street.  A series of modif...
08/04/2026

Up on the bench for assembly are another set of S&S B2 full race prep. Positively not for the street. A series of modifications per individual customers requirements.

Engineered for point "A" to point "B" ASAFP.

46 years of full-time American V-Twin custom engine and cylinder head building experience behind every cut!

S&S T111 top endNothing cookie cutter about it.  An adaptation of my S&S HOS port and blueprint package head work with m...
07/16/2026

S&S T111 top end

Nothing cookie cutter about it. An adaptation of my S&S HOS port and blueprint package head work with many other details. Custom designed, modified and assembled by a life-long pro. For use on a Late T111 in a competitive environment.

Since 1980. 46 years of full-time American V-Twin engine and cylinder head building experience behind every cut. I never used to work on anything else!

Some Intake port of my S&S High Output Street port and blueprint setup with extras. Special application as many of them ...
07/13/2026

Some Intake port of my S&S High Output Street port and blueprint setup with extras. Special application as many of them are!

32 years old and better than new!A really nice set of 1994 Evolution castings going out to a customer in Rhode Island. E...
07/09/2026

32 years old and better than new!

A really nice set of 1994 Evolution castings going out to a customer in Rhode Island. Equipped with my E80 SS2 port and blueprint package complete with all new internals and set up for cams through .600" with max TDC of .220/.220. They've been cc'd and decked to the OEM spec 83cc chambers.

MEGA-FLO. Raising the bar on quality, performance and durability since 1980, before Evolutions were new!

****************     Happy 250th Birthday USA!     *******************I'm Proud to be an Independent Craftsman of 46 yea...
07/03/2026

**************** Happy 250th Birthday USA! *******************

I'm Proud to be an Independent Craftsman of 46 years in the USA!

Address

268 Cornelius Road
Portersville, PA
16051

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