Forged Rocker Arms
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6th Gear
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Forged Rocker Arms
I have heard that some early 2.0's had forged rocker arms. I have a few early 2.0 engines and was wondering if anyone knew anything about these rockers and what engines they may have been in.
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6th Gear
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The earliest editions of the 911 had an air-cooled, rear-mounted, 2.0 L (1,991 cc) 130 PS (96 kW; 130 hp) flat-6 "boxer" engine, similar to the 356's four-cylinder 1.6 L unit. It was mated to a five-speed manual "Type 901" transmission. The car had 2+2 seating, though the rear were very small, also like the 356. The styling was largely by Ferdinand "Butzi" Porsche, son of Ferdinand "Ferry" Porsche. Erwin Komenda, the leader of the Porsche car body construction department, was also involved in the design.
When 356 production came to an end in 1965, there was still a market for a 4-cylinder car, particularly in the USA. The Porsche 912, a slightly downscaled 911 fitted with the 356's 90 hp (67 kW) engine, was introduced the same year as its replacement.
In 1967, Porsche introduced the more powerful 160 PS (120 kW; 160 hp) 911S. Alloy wheels from Fuchs, in a distinctive 5-leaf design, were offered for the first time. A 210 PS (150 kW; 210 hp) racing version of the 911 engine was developed and used in the mid-engined Porsche 904and Porsche 906 track cars.
The Targa version, with a stainless steel-clad roll bar, appeared the same year. Porsche had feared the U.S. National Highway Traffic Safety Administration (NHTSA) would outlaw fully open convertibles[citation needed], an important market for the 356. It was equipped with a removable roof panel and a removable plastic rear window (although a fixed glass version was offered alongside from 1968).
The name "Targa" - shield in Italian - came from the Targa Florio sports car road race in Sicily, in which Porsche had scored seven victories since 1956, with four more to come through 1973. This last in the subsequently discontinued event is especially notable as it was won with a 911 Carrera RS against prototypes entered by Italian factories of Ferrari and Alfa Romeo.
The 110 PS (81 kW; 110 hp) 911T was also launched in 1967 and effectively replaced the 912. The staple 130 PS (96 kW; 130 hp) model was renamed the 911L. The 911R, a lightweight racing version with thin aluminium doors, a magnesium crankcase, twin-spark cylinder heads, and a power output of 210 PS (150 kW; 210 hp), had a very limited production of just 20 cars.
A 1964 Porsche 911 2.0 Coupe inside the Porsche MuseumIn 1969, the slightly lengthened B series was introduced. It moved the rear wheels on all 911 and 912 models 57 mm aft, increasing wheelbasefrom 2,211 to 2,268 mm (87.0 to 89.3 in) to remedy to the car's nervous handling at the limit. Fuel injection arrived both for the 911S and a new middle model, the 911E. A semi-automatic Sportomatic model, composed of a torque converter, automatic clutch, and four-speed transmission, was added to the product lineup
When 356 production came to an end in 1965, there was still a market for a 4-cylinder car, particularly in the USA. The Porsche 912, a slightly downscaled 911 fitted with the 356's 90 hp (67 kW) engine, was introduced the same year as its replacement.
In 1967, Porsche introduced the more powerful 160 PS (120 kW; 160 hp) 911S. Alloy wheels from Fuchs, in a distinctive 5-leaf design, were offered for the first time. A 210 PS (150 kW; 210 hp) racing version of the 911 engine was developed and used in the mid-engined Porsche 904and Porsche 906 track cars.
The Targa version, with a stainless steel-clad roll bar, appeared the same year. Porsche had feared the U.S. National Highway Traffic Safety Administration (NHTSA) would outlaw fully open convertibles[citation needed], an important market for the 356. It was equipped with a removable roof panel and a removable plastic rear window (although a fixed glass version was offered alongside from 1968).
The name "Targa" - shield in Italian - came from the Targa Florio sports car road race in Sicily, in which Porsche had scored seven victories since 1956, with four more to come through 1973. This last in the subsequently discontinued event is especially notable as it was won with a 911 Carrera RS against prototypes entered by Italian factories of Ferrari and Alfa Romeo.
The 110 PS (81 kW; 110 hp) 911T was also launched in 1967 and effectively replaced the 912. The staple 130 PS (96 kW; 130 hp) model was renamed the 911L. The 911R, a lightweight racing version with thin aluminium doors, a magnesium crankcase, twin-spark cylinder heads, and a power output of 210 PS (150 kW; 210 hp), had a very limited production of just 20 cars.
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A 1964 Porsche 911 2.0 Coupe inside the Porsche MuseumIn 1969, the slightly lengthened B series was introduced. It moved the rear wheels on all 911 and 912 models 57 mm aft, increasing wheelbasefrom 2,211 to 2,268 mm (87.0 to 89.3 in) to remedy to the car's nervous handling at the limit. Fuel injection arrived both for the 911S and a new middle model, the 911E. A semi-automatic Sportomatic model, composed of a torque converter, automatic clutch, and four-speed transmission, was added to the product lineup
Track Day
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Forged rockers
My '66 had forged rockers. This was discovered during a recent engine rebuild. They were replaced with cast rockers on the advice of the engine re builder. I have some photos of them if any one wants to see. Dan
