As the story goes, the owner really didnt want to part with the coupe but six months of perseverance finally netted Amie the decisive weekend of negotiating when a deal was made and the coupe was brought home. With no rocker arms, a flatheads total lift must be generated entirely by the cam lobe. Research has shown there's relatively little air movement over the base of the block. Theres a fine juggling act between compression and promoting proper transfer from the offset valves across the piston top. The 270-F, Tatoms best all-around cam, is said to work well on normally aspirated or blown, stick, or automatic cars, with good idle quality and 18-19 inches of vacuum. 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. Notify me of follow-up comments by email. Terms Of Service. No signage, not even a number on the front door. Its only right. 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. The solution is to raise the boiling point by upping coolant-system pressure to 17-21 pounds, using a modern crossflow radiator and higher-pressure cap. Back in the old days, all cars used low-pressure cooling systems, so coolant often boiled. The king of adapters is undoubtedly Wilcap. Yes, you can have a classic flathead with modern fuel injection. These are the only 337 high compression cylinder heads on the market. Only 200 original sets are known to exist, but fortunately, Ardun heads and associated conversion parts are back, reproduced in improved form by Don Ferguson of Ardun Enterprises. "You can grind the cam to get the lift and duration you want," Don says. Dressed with up to four carbs and that unique flathead sound accentuated by glasspacks, the old codgers were suddenly the rage again. Short of machining the block oversize for custom roller-cam bearings, even with a reduced base circle this limits max cam lift to about 0.460 inch. There are over 50 different flathead intake manifolds, but they arent all created equal. Still not enough? French blocks are hybrids, essentially a '49-'53 8BA in terms of deck height and front-end, but with the integral cast bellhousing and corresponding oil pan as found on the '38 1/2-'48 59A. The new engines overpowered the old chassis, so modern suspensions and disc-brake swaps were added to the mix. Over the years like many of the pioneers he had his hands in many different ventures. . A good supply of new French (really) blocks exist and outfits like Scat make new H-beam rods and sell cranks with up to a 4.5-inch stroke. The Flathead in the five-window coupe is the test mule, and Motor City plans to begin production soon. Shop 1949-53 Ford Flathead V8 Engine parts and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. Whats right for your engine differs per application. Normally we'd title this section "Cylinder Heads," but on a flathead, the heads-having neither ports nor valves-only form the combustion-chamber roof. The current incarnation is 3 inches taller than the originals and has smaller 1 1/2-inch ports (vintage versions had 1 3/4 ports, but the new casting is thick enough to hog em out). You need lots of timing to make a flathead run. Baron, Edelbrock, Sharp (Wilcap), Navarro, and Offenhauser make both old-style heads as well as improved new configurations. Younger guys yearned for a simpler, back to basics approach. Technical - 8ba aluminum block design | The H.A.M.B. He joined the Navy and went to the South Pacific as a Foundrymans Assistant. However, there are some significant differences in French blocks compared to the originals. The new Sharp V8 60 flathead cylinder heads feature a centered, bolt on water neck. A truck oil pickup tube assembly (PN 8RT-6615) is required to use the M-15 as well as the standard volume Melling M-19 in 48-and-earlier engines; 49-and-up engines can use the stock pickup. Large-diameter, unshrouded valves combined with a proper combustion chamber configuration and piston design are needed to promote the proper transfer area from the flathead's valves to the far end of the chamber over the piston tops. Tony Baron says that a good-running flathead should have no less than 0.400 lift and about 250 degrees duration at 0.050-inch tappet lift. Heck, not even a front door, really. At present, the only aftermarket custom oil pan available is from Ardun Engineering. A look inside gives you the sensation of an open air concept that could easily be seen in many of todays homes. There are several techniques; the accompanying photos show the method preferred by Baron Racing. Small-block Chevy valves remain popular, but with reduced-base-circle cams they may be too short to permit proper lash adjustment. Sharp 32 Super Dual Early Intake Manifold can accept either Holley 94s or Stromberg 97s. This isnt any ol ARDUN-equipped Flathead, if theres such a thing, but rather the highly desirable V-8 from ARDUN Enterprises; now under the watchful eye of Don Jr. and Don the III. Flatheads are old, ancient, obsolete technology. Since there have never been valves, seats, springs, etc they are very strong. This improves airflow, but the resultant effective combustion-chamber-volume increase lowers the compression ratio, in turn decreasing horsepower and fuel economy. I'd love to retrofit my 36 Ford coupe back from it's current 302 to a flathead. The brothers, working with designer George Kudasch, greatly enhanced the breathing and combustion efficiency of the flathead by developing an overhead-valve cylinder head with hemispherical combustion chambers. As its name implies, Red's Headers is the place to go for the widest selection of street-style headers. With just three mains (modern V-8s have five), a flatties bottom-end is marginal for high, Tom Roberts uses a 6-inch-od early 327 Chevy small-journal damper, honed and rebroached wi, Dont want to do any machining? The Chrisman coupe ran three engines at Bonneville that year, but only one, Harry Duncan's 258-inch Ardun-Mercury, held together with any success. But that just leaves these pristine virgin blocks for us normal street guys. That should get any hot rodders beat to quicken and pique his curiosity. Most hot rod engines use oversize valves. The company they formed to produce these heads was named Ardun, an acronym derived from their last name. Mullins, a leading purveyor of surplus Jeep and other vintage military parts in Texas, accidentally discovered a warehouse full of brand-new French blocks about to be junked during a European trip searching for Jeep stuff. 5.0 out of 5 stars. The originals still are. Tony Baron says that a good-running flathead should have no less than 0.400 lift and about 250 degrees duration at 0.050-inch tappet lift. We mentioned an ARDUN Flathead V-8. The flathead blocks to get are those with a 3 3/16-inch bore. 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. Custom billets stretch all the way to 4.5-inch stroke. Traditional flathead airflow management practices call for relieving the block-removing metal between the valve-seat sides closest to the cylinder bore. You need the right amount of plenum volume and runner length to complement the engine size, camshaft, cylinder-head flow, and operating range. The Ford 2N was a variation on the 9N introduced due to World War II. This lateral flow severely restricts flathead breathing capability, although it does promote what today's high-tech engineers term swirl and tumble, which enhances fuel mixing and combustion. The best balance has been the subject of debate for over 60 years. The new engines overpowered the old chassis, so modern suspensions and disc-brake swaps were added to the mix. Fair, is fair. While enduing lifes ups and downs, hes held steadfast to what he likes in vintage tin, a 1936 Ford coupe. In order to gain this clearance, the hood sides where they meet the fenders were modified by being raised 1-1/2 inches yielding the necessary ARDUN valve cover clearance. On the street, flatheads are happy on today's crappy gas, because that's the only kind of gas there was back in the '30s. The flathead's compression ratio is well suited to supercharging, and besides, what could be more hot rod than a blower poking through the hood? Fel-Pro and Victor continue to make head gaskets too. Hilborn and Ardun Enterprises offer EFI conversions that look like old-time stacks but with EFI nozzles. 4451 Ramsdell Avenue The engine may "feel better" with 27-30 degrees total timing (as read on the crank), but Baron says "it slows up the flame travel. Only 200 original sets are known to exist, but fortunately, Ardun heads and associated conversion parts are back, reproduced in improved form by Don Ferguson of Ardun Enterprises. Mostly true, but the French military used flatheads as late as the early 90s and ancient flathead technology has evolved to run over 300 mph at Bonneville. ", Among this herd of sheep, a few original hot rods were brought out of retirement, complete with gennie flatheads as the powerplant. Still not enough? Small-block Chevy valves remain popular, but with reduced-base-circle cams they may be too short to permit proper lash adjustment. The frame was fitted with brackets to accept a blown ARDUN V-8, TREMEC TKO five-speed, clutch pedal, power brake booster and pedal, and plumbing package, which includes stainless steel brake lines. French blocks already h, Before the SCTA banned French blocks, Ron Main was treating this one to his valve-reversal, Piston evolution, from left: Not a cartoon caricature, the modern 50s-cast Hi-duty Ford O, Chamber evolution, from left: The early 32-36-style chamber worked with flat-top pistons, The 7/16 popup piston is at 23 degrees BTDC, the point where its 60-degree chamfer starts. Mullins, a leading purveyor of surplus Jeep and other vintage military parts in Texas, accidentally discovered a warehouse full of brand-new French blocks about to be junked during a European trip searching for Jeep stuff. Barney Navarro started machining Weiand speed equipment right before he started making his own in 1947. He showed us dyno sheets of full-race engines making north of 800 hp on alcohol. $1,120. Correct-length flathead 1.800 intake/1.600 exhaust valves are available from flathead specialists like Baron Racing.
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