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What goes into a 460 swap?
I know this is probably a continuation of previous threads, but I think it would be worth putting together on one thread. As most 71'-'73's came with small blocks (and big block swaps seem to be more and more popular) I thought it would be good to get everyone's input on this particular swap.
What goes into removing a small block and swapping in a 460 based motor? What are the best mounts to use? Is there even an option or is there only one? How easily will this fit under the factory hood? Will there be any issues with the accessories fitting (power steering, A/C, etc..)? Is there clearance for valve covers with the power brake booster? Will there be an issue changing spark plugs or do I need to take the engine half apart to do so?
I have been sent some private messages on this matter (which I do appreciate). But I would like to hear from everyone about their experiences and "what not to do's". Thank you everyone in advance..
[+] 1 user Likes cazsper's post
The only thing that has given me problems is my tall t- handle valve cover bolts and the power steering gear box with the headers ... but that was because I was being cheep, with the proper mounts it would fit fine.

[Image: 2cossj6.png]
97 F150: wrecked, 96 Dodge 4x4: blown motor / donated to the base
88 Suburban 4x4 355 cid 8 inch lift: sold, 95 Celica 5 speed : sold
68 F750 391 cid : sold,  96 F350 7.3 diesel dually : sold
86 Chevy 1500 305 cid c1500: sold, 73 Mustang mach 1 466 cid 5 speed : under construction
89 F350 4x4 cummins swap : sold, 64 Dodge d600: gone
00 Excursion: traded, 72 Mustang mach 1 302: scrapped
73 Mustang coupe: scrapped, 73 ranchero gt
06 Honda crf 450x : sold, 04 Honda vtx 1800
88 Bronco xlt lariat: sold, 76 Charger: traded
95 F350 4x4: sold , 91 Crown Victoria 302: sold
02 Dakota: traded, 96 f250 powerstroke: parts truck
87 f700, 98 e350 powerstroke: sold
03 land rover: traded, 95 f350 dually: part out
95 f350 dually: traded, 94 f150 4x4: traded
97 f250: sold, 76 Maverick 302: sold
91 240sx rb25: sold, 86 firebird: sold
86 Trans Am: sold, 88 westernstar: sold
89 dodge d350: sold, 2000 Dakota 4x4: sold  
84 f350 3+3: sold, 90 bronco: partout
67 catalina, 64 chevy c60
64 jeep j200, 74 corvette stingray
79 Lincoln mark V, 2013 f350: goldilocks
What would be the best option for mounts if I was going to run either shorties or at least mid-length headers?
cazsper;127375 Wrote:What would be the best option for mounts if I was going to run either shorties or at least mid-length headers?

Here's a pic of my 429/460 car which the prior owner did the swap on..was a 302 car..I have all the receipts part #'s he used..I havn't detailed the engine compartment yet but I will..
He used crites motor mounts & tranny mount..c-6 ..hooker full length headers..changed from power steering to manual..Manual disk drum setup..

Nice. I see you went with a "pusher" fan instead of a puller. Is that because of the space available? How is the manual steering?
I used the stock style frame stands, brackets and isolators from MU. If the car was equipped with an FMX the trans bracket will work, you just have to flip it around to work with a C6.

I used the stock cleveland 3 row radiator, as well as the fan (by enlarging the hole to 3/4") and the fan shroud which required a little massaging to get by the crank pulley.

Headers are FPA mid-length.

There isn't much to it.

With regard to the Crites swap kit, when I talked to them they said they were now only making solid motor mounts for this application. Might be a little rough for a street car.

73 conv. 460, D0VE large valve heads, Performer RPM manifold, Voodoo 227/233 cam, Holley 950 HP carb, C6 trans, 3.25 trak-loc.
cazsper;127386 Wrote:Nice. I see you went with a "pusher" fan instead of a puller. Is that because of the space available? How is the manual steering?
Manual steering is manual steering..Keeps the muscles in shape Big Grin
The fan is a puller.. can be a pusher by reversing the polarity..

The MU frame and block brackets are most likely Crites
Motor mount insulators are DCMR brand
I stock the motor mounts

Item #D1ZZ-6038
67-73 MOTOR MOUNT 390/427/428/429
Motor mount for 67-70 390/427/428 and 71-UP 429. Each, fits left hand or right hand. Price: $39.95

Ohio Mustang Supply

[Image: oms_sig_banner.jpg]
Here is a photograph of the 472 (429 + 460 crank bored .060) installed in my 1973 Grandé.

[Image: dr5zj8.jpg]

For the most part, I simply utilized the parts that were available for a stock 429CJ/SCJ 1971 Mustang. Most of the substantive"modifications" (in my mind) were done in the internals of the motor, i.e. cam, roller rockers, pistons, ect.

I found "referring" to my application as a 1971 429CJ/SCJ to be especially useful when trying to source parts from different vendors to include Autozone, NAPA, etc.


Do the RIGHT thing.
Looks great.. Besides gas and tires, woukd you say there any drawbacks to a 429/460?
My main concern is fitting under the factory hood, being able to get to spark plugs and everything on the front fitting (pulleys, power steering, etc..
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