Yeah, maybe since i dont have a facebook log on i could not see this clear example of how a Boss9 engine is a drop in for a 7173 mustang. So, after you pop on the exhaust manifold the steering shaft, power brake booster with MC and power steering just drop in too? And do you need to drop out the engine to change spark plugs?
Now thats funny!!! You’re only missing cut the radiator support from your list and paint the body with primer to be able to drop Boss 429 in – that I would call a mock-up of all time!!!!
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Seriously taken I believe that the ‘72 Mach 1 is being restored and in my neck of the woods the vehicles are disassembled during the restoration. So what would be better moment to mock-up the engine while the engine compartment is empty? As you can see, it’ll fit but naturally there’s no 2 ft empty space between the engine and shocktower.
Anyway my point is proven, a 429 Boss can and will fit to the stock engine compartment of ‘71-’73 Mustang as you can see from the pictures.
That’s all I wanted to tell in the first place. Wwhite72 you can keep insisting what ever you want, but I must warn you, you start to sound like chebby guys – they allways knows better why GM is superior against Ford. IMO you should be happy to have such a wide engine compartment.
There will be cons and pros with the B9 engine for sure, like the brakebooster & Master cylinder as you stated, but when there’s a will there’s a way. In original 429 Boss Mustangs Ford solution was that the brakebooster was angled away from the valvecover towards the driver side fender. There is a angled spacer, you can get new from Mustangs unlimited for example. Or you can get the RRS brake setup – ITS SWEET PIECE OF ART!! With RRS your brakebooster will be moved under the dash with the pedal assembly and the best part of all, you can get smooth firewall with no booster, no mastercylinder. It makes the engine compartment really clean. But if your mechanical skills aren’t limited to filling up the lawnmower then you should stay with the engine that your car has.
For the sparkplugs, you might want to check out Chrysler Hemi or Bpss 429 engine at local car show. It’s got the spark plugs sitting in the middle of the valvecover & head – due to hemispherical chamber and due to valve placement. Check the picture where the valvecover is off from the head – you can clearly see the placement of the valves and you can even see the hole for the spark plug. B9 Sparkplug can be changed easyer than in the 429 CJ at ’71-’73 Mustang.
Yeah its probably just the way the picture looks from here, since the 7173 mustang and the Talladega have the exact same size engine compartment. Ha.
Please specify the engine compartment.