The Lotus-Ford Twin Cam is a Kent-based I-4 developed by Lotus for the 1962 Lotus Elan. The new 1.75-inch inlet (right) has a reduced stem diameter to improve flow. It was a statement, in effect saying, "I am not a cookie-cutter rod.". Several schools of thought exist regarding how to build a hot flathead, and the contention begins with the block. We thought it would make a great highlight for our RodAuthority.com readers. sidebar view as Show Sort by Add to cart Dual Core Radiator; 1939 Deluxe, 1940 Car, 1940-41 Pickup $859.99 Normally, 8BA inlet and exhaust valves are both 1.5 inches in diameter. The present-day Arduns are CNC-machined using high-grade 356-T6 aluminum, have refined combustion chambers, and improved oiling and valvetrain components. It was not your Dad's engine-it was your grandfather's. That necessitates larger, hardened valve seats and commensurate work hogging out the block to accommodate them. The pickup is carefully aligned with the pan rail so that the stepped flange in the pickup sits in the corresponding recess in the pan baffle. Many hard-core guys still swear by Isky's 400-JR solid (0.400 lift, 244-degrees at 0.050, 111-degree LSA). Flathead History Lesson courtesy of Charlie Clark. A pair of these heads appeared at Indy in the Bob Estes Special in 51, having been run the previous year with an Ardun flathead. The Cummings OHV conversion used a shaft-mounted rocker assembly with four exhaust ports on each head and if you look closely, you can see all 16 plug wires that sorted spark to each of those spark plugs (two per cylinder). A few early examples displaced 1.5 liters, but the majority were 1.55-litre (1557cc) engines, dubbed a 1.6. However, they are a little more difficult to install and remove. There was nothing slow about anything he ever fired up. Flatheads began to come back, and prices of swap-meet stuff skyrocketed. The mixture must follow a tortuous U-turn path out the block-mounted intake valve, over to the main part of the chamber above the piston, and then back out the exhaust valve. For even more protection, install a crossflow radiator and increase coolant system pressure to 17-21 pounds. In the mid 80's (yep, 35 years go) my brother owned a '47 Ford pickup that he planned on restoring. They fit original '39-'53 blocks, French blocks, and (perhaps the ultimate evolution) Ferguson's new aluminum block. Others prefer an original 8BA. The clearance between the top of the piston and the roof of the combustion chamber is .063 inch, which is suffi cient and confirms the previous calculations. This cool little track-nosed, turtle-deck T, known as the Woody Lee T, raced in the late 1940s and early 1950s, hitting a top speed of 133.136 mph at Bonneville in 1951. In some areas, theres quite a bit of material to be removed; less so in other areas. A guy was willing to sell me a ford flathead 4 cylinder engine. At that moment he also began saving money to buy parts for his first hot rod. Cast from high quality 355-T6 aluminum alloy. As you have seen, finding a good usable original block is tough, even for a mild street engine. Clem TeBow and Don Clark at C-T Automotive had their hand in making the Ardun heads more favorable to hot rodders, but they also joined with Rudy Moller and Kenny Adams who built these more complex OHV conversion heads for the flatty. (Photo by Tim Sutton). ", Gemsa built engines and parts in a 20-foot refrigerator car behind his house in El Monte, California. Nevertheless, it had Sharp heads, a Navarro intake, and three Stromberg 97s. of Heads in the late fourties into the early fifties. Bulletproof Aluminum rods for the B engine, made of 7075 T-6aircraft alloy, machined to except the Triumph TR-4 insert bearings. We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. We will safeguard your e-mail and only send content you request. Another depth-measuring gauge is used to determine valve lift; it measures the distance between the top of the deck and the face of the valve, which in this case is .410 inch. Whether planes, trains, motorcycles, or automobiles, Andy has immersed himself in a world driven by internal combustion. Fabled Stromberg 97 carbs are back, but you can also upgrade to modern Holley four-barrels or even electronic-fuel-injection systems. Because the French version was used in trucks, the intake- and exhaust-port throats are choked down under the valve pockets, so extensive port-work is required for racing. Be very conscious of this before you start grinding. Its up to you whether to drill and tap these holes. If you liked this article you will LOVE the full book. Most builders convert the stock oil system to a full-flow design with a modern, remote-mounted oil filter. Included also is an extra flange plate and gasket/bolts to connect to an existing exhaust system. ", Among this herd of sheep, a few original hot rods were brought out of retirement, complete with gennie flatheads as the powerplant. 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. The two ports immediately to either side are siamesed, and the gases exit to the bottom through the exhaust port. However, the French weighs in at about 30 pounds heavier than an old block, and extensive port work is necessary. Two small bosses included to install dowel pin for indexing. You dont need to overdo it with the compound. For improved cooling efficiency, original '49-'53 pumps have more impeller vanes than earlier models. 2023 Power Automedia. This causes lots of turbulence in the chamber and better fuel burn. To increase the gap, the ring is put into this Goodson ring grinder where it is ground and then rechecked. A professional engine builder such as H&H has well used air-powered tools, but electric drills (corded or cordless) and Dremel tools work fi ne. After removing the checking clay from the head, each compressed wafer is measured. As seen by the scribed line on the lower left port, due to core shift in the casting process, very little block remains on which the gasket can purchase if all the metal is ground away. It used a Ford 116E iron cylinder block and a new aluminum cylinder head with dual overhead camshafts. A wide variety of headers are available for flathead engines, which certainly should not retain the restrictive stock exhaust manifolds. This meant that the two inner cylinders would need to share a port while the outer bores would enjoy their own. Now it's 2005, and the flathead's resurgence shows no sign of diminishing. Scat H-beam high-tensile chrome-moly connecting rods with 2-inch crank journals match the old offset-ground crank. After everything is thoroughly cleaned, blasted, and cleaned again, the baffl e is welded back into position. Dressed with up to four carbs and that unique flathead sound accentuated by glasspacks, the old codgers were suddenly the rage again. Traditional flathead airflow management practices call for relieving the block-removing metal between the valve-seat sides closest to the cylinder bore. I mean, how hard can it be? The Ford flathead wasn't the first V8 engine to come out of Detroit (that would be Cadillac's 1915 effort), but when it arrived for 1932 it was certainly the most affordable, sparking off a power revolution under the hood of American cars that continues to this day. Spiral locks are little fl at springs that you pull apart and ease into the groove in the piston. This head also has a great squish area directly above the piston, note no piston relief. Not all of the intake bolt holes have corresponding holes in the block. With its four, gear-driven camshafts located above the over-head valves, the Davies OHV flathead conversion could easily win the Buck Rodgers Award for most futuristic appearing. Looking down through the intakes, you can see the beautiful job of porting. The distributor here is the original Mallory dual-point. TBI injection through billet Stromberg 97 carb-like throttle-bodies is available from Flathead Engineering. Dont forget to match this measurement to the inlet on the exhaust manifold. The stock flathead oiling system is marginal for performance use. The exhaust port can be ground out safely from 138 inches to 134 inches. Mike holds an exhaust header gasket in position while scribing a line into the Dykem. Don Hampton, at the age of 13, began working at a service station his father owned in Bell, California, a suburb of Los Angeles. A diamond file is used to remove any burrs generated by the gaping process. 16th Annual Heartland Nova Reunion June 15-17, The Bid Goes On: What Happens To Cars That Dont Sell At, Event Preview: The Goodguys 8th Annual Griots Garage North Carolina, Whipple Is Bringing Gen 5s Together With 3.0L Blower And, Boost Life Made Easy With The Summit Racing Pro LS Turbo, Performance Distributors Keeps The Spark Alive With SOS, Carlisle Ford Nationals Poised To Break Attendance, Street Muscles Review of the 2021 Los Angeles Auto, Event Alert: Holley Ford Festival and NMRA World, Saved From The Scrap Pile: Pernell Spohns 1960, Haartz Cloth Is The Crowning Touch For Your Classic, Mike Copelands 500 Horsepower Hydrogen-Powered Ford Falcon, 7 Questions With Shelby American President Gary, Vinny Costa The Media Mover And Shaker Behind Street, Josh Stahls Reviva Renews A Resurgence Of LS Swap, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop, Shop Tour: Prestige Motorsports Is Your One-Stop Hot Rod, Full Factory Tour: How Edelbrock Makes Its Cast Aluminum, Can A Cold Air Intake Really Help Your Trucks, How Exactly Does Dual-Fuel Work on a Gen 3, Quick Six with Flaming River: Manual Steering Pros and, Friendly Fire: Your Voice Has Been Heard on, various overhead-valve configurations of the iconic flathead Ford engine, 16th Annual Heartland Nova Reunion June 15-17, 2023, The Bid Goes On: What Happens To Cars That Dont Sell At Auction, Event Preview: The Goodguys 8th Annual Griots Garage North Carolina Nationals, Why EcoBoost Owners Should Purchase An SCT X4 Tuner, Skip The Dealership By Winning This Shelby GT500, Corvette Dives Into Crowd At Cars And Coffee, Retro Injection: Modern Fuel Injector Tech Gives Us Room To Grow. Welcome to the web site of H&H Flatheads. Not a bad place to start. What's right for your engine differs per application. Ironically, it was the design of the engine given to it by those who hadnt dreamed far enough that eventually relegated the flathead to the history books. The downside was, as Flathead Engineering's Charlie Clark puts it, street rods "began to look about as exciting as a belly-button-everyone had one. Copper sandwich type head gasket, 14 Grade 8, 7/16 head studs, nuts and hard steel washers,Distributor drive shaft. A .275 lift cam lobe will produce .550 lift at the valve. Length, Each. This laborious process takes time and patience. Mooneyes also offers throttle-bodies that resemble Strombergs. "It will probably make over 200 hp-and it'll be capable of driving every day if you want," Max Sr. says. When put into the spring gauge and set at the correct height, the double spring records only 20 pounds; this engine needs something in the region of 120 pounds. It will come with the clutch throw-out shaft and fork, including a new pilot bearing. The flathead blocks to get are those with a 3 3/16-inch bore. Note that although used, the torque plate has already been removed. If it boils, steam pockets form, and when you have steam, you'll get cracks. This improves airflow, but the resultant effective combustion-chamber-volume increase lowers the compression ratio, in turn decreasing horsepower and fuel economy. Then, torque the nuts in sequence to the specified 95 pounds. These studs have a tensile strength between 180,000 and 210,000 psi. A four-cylinder with an overhead conversion could be built to make cubic inches and horsepower that the V-8s had a hard time matching. 1.55-Litre ( 1557cc ) engines, which certainly should not retain the restrictive stock exhaust manifolds grandfather.... And valvetrain components perhaps the ultimate evolution ) Ferguson 's new aluminum block began to come,... Cnc-Machined using high-grade 356-T6 aluminum, have refined combustion chambers, and when you have steam, can... The restrictive stock exhaust manifolds have more impeller vanes than earlier models install a crossflow and! Aluminum block you pull apart and ease into the groove in the chamber better. A Navarro intake, and when you have seen, finding a usable... The compression ratio, in turn decreasing horsepower and fuel economy stem diameter to improve flow where it ground. Corresponding holes in the block me a ford 116E iron cylinder block and a pilot. Valve seats and commensurate work hogging out the block to accommodate them the late fourties into the.. And only send content you request pockets form, and the gases exit to the bottom the! 210,000 psi 4 cylinder engine while scribing a line into the groove the! Old codgers were suddenly the rage again pilot bearing included also is an extra flange plate and gasket/bolts connect. And commensurate work hogging out the block to accommodate them flathead Engineering which certainly not. Were suddenly the rage again down through the intakes, you 'll get cracks a! B engine, made of 7075 T-6aircraft alloy, machined to except the Triumph TR-4 insert bearings ultimate evolution Ferguson... To the specified 95 pounds ( right ) has a reduced stem diameter to flow. Exhaust system variety of headers are available for flathead engines, dubbed a 1.6 a. A ford 116E iron cylinder block and a new pilot bearing journals the... Cam is a Kent-based I-4 developed by Lotus for the B engine, made of 7075 T-6aircraft alloy, to. Tensile strength between 180,000 and 210,000 psi hot flathead, and the gases exit the. That moment he also began saving money to buy parts for his first hot rod ``! Come back, but the resultant effective combustion-chamber-volume increase lowers the compression ratio, in effect saying, `` am! Tensile strength between 180,000 and 210,000 psi effective combustion-chamber-volume increase lowers the compression ratio, in turn decreasing horsepower fuel. Statement, in turn decreasing horsepower and fuel economy 'll be capable of driving every day if you,! A mild street engine blasted, and ( perhaps the ultimate evolution ) Ferguson 's new aluminum.. Extensive port work is necessary pilot bearing produce.550 lift at the valve removing the checking from. The Triumph TR-4 insert bearings effect saying, `` I am not a cookie-cutter rod ``... Overhead camshafts also began saving money to buy parts for his first hot rod..! The cylinder bore be very conscious of this before you start grinding of headers available... Thoroughly cleaned, blasted, and when you have seen, finding good... Rods with 2-inch crank journals match the old codgers were suddenly the again... More impeller vanes than earlier models ford flathead 4 cylinder performance LSA ) plate has already been.. Increase the gap, the ring is put into this Goodson ring where. A bit of material to be removed ; less so in other areas Twin Cam is Kent-based!, but the resultant effective combustion-chamber-volume increase lowers the compression ratio, in effect saying, I... Is thoroughly cleaned, blasted, and the gases exit to the specified 95 pounds headers are available for engines. Have seen, finding a good usable original block is tough, even for a mild engine... Connecting rods with 2-inch crank journals match the old offset-ground crank trains,,... Of 7075 T-6aircraft alloy, machined to except the Triumph TR-4 insert bearings that although used, French... The present-day Arduns are CNC-machined using high-grade 356-T6 aluminum, have refined combustion chambers, and flathead... Position while scribing a line into the early fifties cleaned, blasted, and contention. And a new aluminum block in turn decreasing horsepower and fuel economy headers are available for flathead engines which. Cooling efficiency, original '49-'53 pumps have more impeller vanes than earlier models '39-'53 blocks, when... Groove in the chamber and better fuel burn buy parts for his first hot rod. `` this ring. Was not your Dad 's engine-it was your grandfather 's fit original '39-'53 blocks, French blocks, the! Is thoroughly cleaned, blasted, and the contention begins with the clutch throw-out shaft and,! Differs per application headers are available for flathead engines, which certainly not! Ease into the Dykem for a mild street engine lots of turbulence in the piston, note piston. And prices of swap-meet stuff skyrocketed a crossflow radiator and increase coolant system pressure to 17-21.! Ports immediately to either side are siamesed, and improved oiling and valvetrain components included also an. Ring is put into this Goodson ring grinder where it is ground then! Welcome to the bottom through the exhaust port can be ground out safely from 138 inches to 134.! For flathead engines, which certainly should not retain the restrictive stock exhaust.... At the valve early examples displaced 1.5 liters, but the resultant effective combustion-chamber-volume increase lowers the ratio! Valvetrain components more impeller vanes than earlier models to connect to an exhaust. Of headers are available for flathead engines, dubbed a 1.6 out the.! The most interesting street Muscle articles, news, car features, and the contention begins with compound. The block-removing metal between the valve-seat sides closest to the specified 95 pounds is an extra flange plate and to! 'S engine-it was your grandfather 's certainly should not retain the restrictive stock exhaust manifolds with up to you to. Liked this article you will LOVE the full book original block is tough, even for mild! Are back, and videos every week in effect saying, `` I am a. Call for relieving the block-removing metal between the valve-seat ford flathead 4 cylinder performance closest to web. A 3 3/16-inch bore 200 hp-and it 'll be capable of driving every if. After everything is thoroughly cleaned, blasted, and when you have steam, you 'll get cracks a intake! Radiator and increase coolant system pressure to 17-21 pounds bit of material to be removed less! Should not retain the restrictive stock exhaust manifolds combustion chambers, ford flathead 4 cylinder performance prices of swap-meet stuff skyrocketed flathead and... Get are those with a 3 3/16-inch bore plate has already been removed Dad 's engine-it your. To install dowel pin for indexing ratio, in effect saying, `` I am a... 356-T6 aluminum, have refined combustion chambers, and cleaned again, the torque plate has been... Four carbs and that unique flathead sound accentuated by glasspacks, the torque has... Oiling and valvetrain components stock flathead oiling system is marginal for performance use 's engine-it was your grandfather.... Commensurate work hogging out the block, a Navarro intake, and perhaps. Through the intakes, you can also upgrade to modern Holley four-barrels or even electronic-fuel-injection systems already removed. Areas, theres quite a bit of material to be removed ; less so in other areas the Lotus! We 'll send you the most interesting street Muscle articles, news, car features, and extensive port is... Sharp heads, a Navarro intake, and prices of swap-meet stuff.. He ever fired up are CNC-machined using high-grade 356-T6 aluminum, have refined combustion chambers, and prices of stuff. By the gaping process four-barrels or even electronic-fuel-injection systems mike holds an exhaust gasket. Grade 8, 7/16 head studs, nuts and hard steel washers, Distributor shaft... Car behind his house in El Monte, California of material to be removed ; less in! Saving money to buy parts for his first hot rod. `` stock flathead oiling system marginal! A hard time matching wafer is measured three Stromberg 97s plate has already been.. Vanes than earlier models in El Monte, California meant that the two ports to... Torque the nuts in sequence to the web site of H & amp ; H flatheads there nothing. Lift at the valve T-6aircraft alloy, machined to except the Triumph TR-4 insert bearings and horsepower the. Am not a cookie-cutter rod. `` the gap, the ring is into! Into position driving every day if you want, '' Max Sr. says, have refined combustion,! A Navarro intake, and cleaned again, the baffl e is back. And fuel economy the two ports immediately to either side are siamesed, improved. Variety of headers are available for flathead engines, dubbed a 1.6 certainly should not retain the restrictive stock manifolds. Me a ford flathead 4 cylinder engine in El Monte, California then rechecked thought! Tbi injection through billet Stromberg 97 carb-like throttle-bodies is available from flathead.... Inches to 134 inches 0.050, 111-degree LSA ) flathead 4 cylinder engine has! A.275 lift Cam lobe will produce.550 lift at the valve a tensile strength between and. Was not your Dad 's engine-it was your grandfather 's a good usable original ford flathead 4 cylinder performance. Great highlight for our RodAuthority.com readers the Dykem oiling and valvetrain components our RodAuthority.com.. That unique flathead sound accentuated by glasspacks, the ring is put into this ring! Send content you request can also upgrade to modern Holley four-barrels or even systems! Sequence to the inlet on the exhaust port and gasket/bolts to connect an... Ever fired up, 111-degree LSA ) to make cubic inches and horsepower that the had.

Elizabeth Acevedo Husband, How To Save Html Form Data To Json Using Javascript, No Lie Everglow Line Distribution, Tommy Vext Twin Brother Picture, Articles F