Recommended bottom-line street-gas-friendly compression ratios are between 7.5-8:1 on naturally aspirated engines and 6.5-7.0:1 with a blower. Flathead History Lesson courtesy of Charlie Clark, Although a great leap forward when it was originally introduced in 1932, by the 50s the aging motor could not stand up to the new generation of overhead-valve powerplants like the small-block Chevy. Small logo on front, large logo on back. No detail has escaped Don's attention. Should you look into the trunk you can see forward to the dash. Al Sharp was a innovator, businessman, WWII vet, machinist, pattern maker and a man who loved to make things go faster. Available in black t-shirt or white t-shirt. Four-bolt center main cap. Available in center and front water neck. Still not enough? Starting in July 1938, the blocks went to 24 head-retention studs. The new Arduns have lighter 11/32-inch-stem stainless steel valves and accept modern 12mm, Save another 70 pounds with Ardun's new aluminum block. I'm not sure but casting aluminum MIGHT be a simpler process than casting iron. Here you can find some details and specifcations for the newly engineered flathead block, not sure how old this information is? And Don has rimmed the valve cover with an O-ring for leak-free sealing. As for cylinder heads, Baron, Edelbrock, Navarro, Offenhauser, and Sharp (now sold by Wilcap) all have their adherents. But I digress. Like a lot of race shops located in industrial sections of Southern California, Don Ferguson's place is nondescript to the point of camouflage. Ford Flathead V8 The engine that gave birth to Hot Rodding is back!! H&H Flatheads The Aluminum Ardun - Rod & Custom Magazine - MotorTrend Currently the most popular approach is running a big popup piston, but with a scallop on the side adjacent to the valves to keep the transfer area clear between the valves and the cylinder bore. The flatheads compression ratio is well suited to supercharging, and besides, what could be more hot rod than a blower poking through the hood? Modern Ardun - MotorTrend 217 and 201 are only 4 bolt which you can see if the lower cover is off the bell housing. Wilcap also sells 32-48 Ford mechanical-clutch hardware. Click below to preview or download the complete catalog. After getting a good dose of sunshine and warm temperatures, they decided to pay us a visit on the way back home. With modern flatheads routinely putting out 250-300 lb-ft of torque, the original trannies obviously aren't up to the job. Too high a compression ratio and the engine peaks early due to restricted top-end breathing. The story starts around a decade ago with Don Orosco, who after a lot of research and a not-inconsiderable investment, had 30 sets of Ardun heads reproduced for his personal racing efforts. superchargers, which, like the heads, look period-correct and the case is filled with todays technology and outfitted with 4-71 helical-cut rotors. Flatheads may not have the cubes or brute airflow potential of many of today's modern mills, but there is a solution: Bolt on a supercharger. On the following pages, well take a look at some of the stuff available for the flathead and also cover the lineage, interchangeability, and secrets of this proud forebear of modern hot rodding. First invented in the 30s it was 1934 when Stewart-Warner eventually produced over 3 million for use in cars, planes, and military vehicles. Finally, there are brand-new aluminum blocks and Ardun OHV conversion heads and valvetrains. Tom Roberts' new two-piece crossflow utilizes the latest in airflow technology. Its the ol friend of a friend connection that brought him to the correct 1936 Ford coupe. All flatheads overheat, then the blocks crack. we're not talking about how much money you can spend breaking a record set by someone following the rules. Schneider's 278F solid (0.420 lift, 250 degrees at 0.050 duration, 110-degree lobe separation angle) is one grind that falls within these specs. (Pardon me if I'm wrong about this.). Also, what does "wet jackets" mean? At the other extreme are dry-lakes, Bonneville, and nostalgia drag racers who have applied modern technology to the point where in some instances it is questionable whether the engine still remains a true flathead: Once-85hp engines now produce over 400 hp on gas and have exceeded 700 hp on fuel-all this on an engine with only three main bearings. The originals still are. ARDUN Enterprises is now replicating S.Co.T. His manifolds and valve covers graced the of the famous Hurst Hairy Olds twin engine car and he helped Craig Breedlove with the Spirirt of America record setting run. If you look beneath the dash you will spot the makings of a South Wind gasoline heater. All flatheads overheat, then the blocks crack. Since there have never been valves, seats, springs, etc they are very strong. DD. This site uses Akismet to reduce spam. Apparently, the old boys' network doesn't want any youngbloods crashing their exclusive country club. RR&C achieved this look by removing the divider between the truck and the passenger compartment. Ultimately, you can move up to one of Cornhusker Engineerings custom front cover and late-model water-pump setups. This site uses Akismet to reduce spam. Enjoyed this Post? A new player is Gemini Electronic Fuel Injection, a complete bolt-on flathead conversion kit based on the self-programming Prodigious fuel injection system. For reasons known only to the crazy French, flatheads were used in French Army trucks through the early 90s. Now its 2005, and the flatheads resurgence shows no sign of diminishing. A high-pressure system will run fine with no boiling, even at 190-210-degree gauge temps. There is also an ugly governor mounting boss on the left-rear of the block that many rodders prefer to machine off. You can now build a brand-new flathead. This grew into 6 different Ardun, V8 60 intakes, Lincoln 337 heads and intakes, Lincoln V12 intakes and heads and ford flathead intakes. But remember, we are talking about a seriously outdated engine design favored by a bunch of nostalgic old coots. It will use a new oil pan and special bolt-on universal bellhousing that accepts most modern transmissions. Ardun Enterprises (Don Ferguson) Wilmington, CA 323/775-6803 www.ardun.com Ardun OHV cylinder heads and related valvetrain and camshaft parts; aluminum blocks, cast-aluminum oil pan, EFI systems . This improves airflow, but the resultant effective combustion-chamber-volume increase lowers the compression ratio, in turn decreasing horsepower and fuel economy. Edelbrock 1115 Flathead Ford Aluminum Cylinder Head With Script Logo 65cc Pair. These second-design 38 1/2-48 blocks (often referred to as 59A castings) retained an integral cast-in bellhousing, used a distributor that mounts flush to the front cover with a horizontal shaft on the front of the engine and had insert-style main bearings but still used full-floating rod bearings (one bearing shell for each rod pair).
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