Mustang was a well known iconic car, It’s one of the best and variants was the 69 mustang 429 boss. Ford had a weak time while 426 Hemi Chrysler was used in NASCAR, so the competition made that position In The market, ford came up with engine Boss 429. This Mustang 429 Boss was developed for the model year 1969-70. There were a total of 1358 examples of which 859 for 69 and 499 for 1970. The 1969 models were actually Boss 429 Cougars. To make the Mustang engine the boss 429 fit inside there were modifications needed in Inthe Boss 429. While looking for other models and designs of that era, the hood scoop was much wider and was true, functional in Inthe Boss 429. This car has a side-view mirror which is small featured in Inthe Boss 429. The 429 engine fitted Inthe Mustang for that it was important to widen the shock towers and extend the fenders. The Boss 429 had a slightly heavier front and also it was a little bit lower than other Mustang models. At that time 1969, the car was in a limited color edition available, that was Raven black, Royal maroon, candy apple red, and black jade. Later in the 70s, grabber orange, green, blue, and calypso coral was available as an extra color option. In 1970 the scoop was only available in black.
The 69 Mustang 429 Boss was simple and elegant too.
Its steering wheel was also made from wood and featured a large three-spoke design. The four gauges at the head of the driver, the tachometer, and the speedometer. There was a round clock of wood insert here, it was nice stuff for the cabin. It had a sitting center console which was so low and a storage compartment to the rear. It also has an armrest that is made up of wood and also separates the shifter at the front of the console. Its seats were matching with the door trim panels and dashboard. Seats are covered with leather.
The engine boss 429 based on ford 385, it had forged steel crankshaft and steel connecting rods. It also had dry deck cylinder heads. The design to seal the sections of the coolant and the oil passage and the cylinder block and cylinder head was O- ring design. This 429 Mustang had an intake manifold which is standard, as was a 735 CFM Holley four-barrel carburetors.
The difference between the 1969 and 1970 engines was camshaft and lifter set-up. 69 Mustang 429 boss engine models used hydraulic lifters while those built for the 1970 model year used mechanical lifters.
According to some websites, it says ” with such a low rpm limit the 429 Boss was able to hit 30 mph in 3.2 seconds, 60mph in 7.1 seconds, and 100 mph in 13.6 seconds”.
Horsepower for the year model 69 was rated at 375 hp and 450 pound-feet of torque.
The Craigslist 69 Mustang 429 Boss was born just for the need of ford to qualify 500 examples of its new racing engine for NASCAR. Ford had a better plan to restyle the engine 69 Mustang fastback. It was actually serious stuff: four-bolt mains, forged steel crankshaft, and big-port staggered- valve aluminum heads with crescent-shaped combustion chambers
You can also check in Junkyard Near Me for 69 Mustang 426 Boss Engine
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