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429 Ford Thunderjet The 1968 Thunderbird saw the introduction of the new 385 series big-block "Thunder Jet" 4V (4 barrel carburetor) 429 cu in (7.0 L) V8 engines . Like many Ford engines of the time, they were conservatively rated at 360 hp (268 kW) (SAE gross).
The smallest-displacement engine of the 385 engine family, the 370 was introduced in 1977, replacing the 361 cu in (5.9 L) 360 Truck (FT) V8. Sharing its 3.59-inch stroke with the 429, the 370 was designed with a downsized 4.05-inch bore (shared with its predecessor and the 390 V8).
The first was the 429 Thunder Jet, the standard engine for the Cobra, rated at 360 hp (270 kW). Next was the 429 CJ (Cobra Jet), rated at 370 hp (276 kW), which included a 2-bolt main block, hydraulic lifters, a 700 CFM Holley or 715 CFM Rochester Quadrajet carburetor, and was available with or without Ram Air. The top option was the 429 SCJ ...
The Boss 429 engine came standard with a 735 CFM Holley 4-barrel carburetor mounted on an aluminum intake manifold that flowed well for its time. [ 1 ] 1969 cars featured hydraulic lifters, switched to solid lifters in 1970 models to minimize valve float at high RPMs; the dual exhaust system was improved, but rated power stayed the same.
The 430 was replaced by the 462 cu in (7.6 L; 7,565 cc) engine in 1966. Bore and stroke were entirely different at 4.38 and 3.83 inches (111.3 and 97.3 mm) and the 462 MEL engine produced 340 hp (254 kW) and as much as 485 lb⋅ft (658 N⋅m) of torque. This engine was fitted with hydraulic lifters and a four-barrel Carter AFB carburetor.
The first production P-59A with a Bell P-63 Kingcobra behind. The 13 service test YP-59As had a more powerful engine than their predecessor, the General Electric J31, but the performance improvement was negligible, with top speed increased by only 5 mph and a reduction in the time they could be used before an overhaul was needed.
Toggle Specifications (TF34-GE-400A) subsection ... The General Electric TF34 is an American military turbofan engine used on ... Twin-shaft, high-bypass turbofan ...
The design had a fuselage lengthened 1 ft 2 in (0.36 m), a more powerful engine version and transmission, and increased takeoff weight. However, the program was canceled and focus shifted to the improved Bell 429. [6] In February 2005, the existing 80 orders for the 427i were converted to the 429. [7]