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Discussion in '1969 Ford Mustang BOSS 429' started by 1999MitsuEclipse, Apr 7, 2003.
I'd probably take the Boss 429.
the boss 429 would win, not that i know that for a fact, but i'd rather seee a ford win, and for the Gone In 60 Seconds Mustange, you can buy one for $130,000 (the real GT 500, not the Fastback look alike)
boss would win, it just pwns like that
the hemi would win but the boss wouldnt be far behind
I'm a chevy guy but I'd take the challenger 426 with 4 speed.
There was never a Boss 427 also there was NEVER a Mustang that had a 427 in Those 67 GT 500 have 390s in them. A 427 Ford was much more powerful than a Chevy 427!!!!
both cars are closest in performance. i prefer the 70 boss 429 (820-A version) These cars were capable of low 13 in the quarter. whith practice, mid to high 12 were capable. but you dont forget the matter than the boss was a more sofisticated engine an more powerfull.
I am 21 years old and I heard about the cammer when imwas like 13 because i dont live under a #$%#ing rock...all of you dumbass ford owners think your mustangs are the shit because you have a v8 and can beat most hondas at a stoplight. Now i also own an 85gt with t tops and a 5speed which i love to drive and love to feel the torque of a v8 under my foot but i am also intelligent enough not to mess with a mopar, having had 4 in the family. 2 1968 roadrunners with 383s and a 68 charger with a 383 and my dad now owns a 2010 SRT8 challenger, and they were not to be triffled with. Mopar engines are literally indestructable, you can hold one to the floor for am hour or until you run out of gas and it will not blow up, ford on the other hand all the ones ive been thru cant do that, ford builds a VERY well designed and balanced engine but because of that they cant take constant rpms like chrysler products. As far as the cammer goes, yes it does have hemispherical combustion chambers and yes it is over head cam BUT the spark plug is not dead center, it is off to the side. That in itself doesnt sound important but it is important to flame propogation in the combustion cycle, with it being positioned that way the ignition begins at the side of the piston top reducing the combustion efficiency, where as the hemi has it dead center making the ignition directly center of the piston, connecting rods, etc. that makes the combustion cycle much more efficient thus able to make more peak power. Hot rod magazine did a stock engine shootout where they built a hemi, a ford 427 and some crap chevy motor to stock blue print specs and then dyno tested them, hemi made 653hp, idc what the ford or chevy motor made but the point im trying to make is the hemi made 650+HP Now to tackle the OHC part of this topic, yes the cammer can now spin up higher than a hemi and therefore make theoretically more HP but obviously it didnt according to a previous poster claiming 658HP when ford unveiled this engine and threatened to use it in drag racing chrysler said "ok we'll make a dual overhead cam hemi!" they only got to a working model called the doomsday or dominator project for those curious enough to google it, when the officials for NHRA and NASCAR stopped in to see it they decided to ban all overhead cam engines so chrysler dropped the project since it was banned anyways.
There hopefully you guys get the idea lol
While FORD apparently never put any 427 FE motors into their mustangs, there have been a few documented cases where Shelby did so. Also, most 1967 GT500's came with 428FE motors, not 390's. It was only during part of the model year that Shelby used the 390 and then only because of a shortage of 428 motors. The 428 used in the 1967 and in the early 1968 GT500's were not cobra jets. They were rated with higher horsepower but were not as quick.
And yes, the 427FE was stronger than the 427 Chevy. The 427FE was built specifically as a racing motor. It was never produced in large numbers though and it was fairly expensive.
Btw - a race ready BOSS 429 was a force and they dominated the circle tracks in 1969 and probably would have continued had Ford not cut their racing budged by 75% in 1970 and then eliminated it entirely the following year. However, the BOSS 429 motors put in domestic cars had different heads than the race spec motors and were seriously de-tuned. In pure stock trim, they were not as quick as the 428CJ mustangs. The BOSS motors had hotter cams but with their huge ports and valves, they needed even more CAM to run in the RPM ranges they were designed to run. In street stock trim, they lacked sufficient intake velocity at lower RPMs to produce serious low end torque. Pure stock, a 426 domstic car should be quicker than a 429 BOSS. But neither were kings. The dodge 440 magnum was quicker in the 1/4 mile than the 426 Hemi.
Ok stangman33 you are wrong Ford did not have rights to the Hemi only Chrysler. There is no way they would give rights to allow Ford to use their ideas and Ford says they have a Hemi motor well they are wrong they call them semi hemi's which sucked tremendously because they had 2 timing belts wrapped around it and would blow after maybe 2 races. I would go Challenger any day over Ford. Yes Ford may have beaten a Mopar car before but i know damn well it couldnt beat a Hemi or any big block Dodge or Plymouth has came out with. Or even the 340-6 pack that was a monster motor in the T/A races. So Ford is ok if you want a comfortable ride but Mopar or GM is the way to go if you want power.
There was never a 427 in a Mustang! There was 250 inline 6's, 289's, 302's, 351W's, 351C's, 390's, 428's and 429's but no 427's!