I just purchased a 73' Ford 4v 460 out of a station wagon and was wondering where I could find specs on ther engine.... the block is a 71'(D1VE) and the heads and 4v intake are 73'(D3VE)are these heads good for making some Horse power? I'm looking to build a 500hp/600ft-lbs. monster for my custom 84' bronco 2x4....

 

I found some on the internet, escapes me where. If your heads are off measure the valves if they are anywhere around 2" on intake or larger they could be police interceptor heads, either way if you install flattop pistons w/ a single eyebrow you can raise the compressionto a good level, bore the block out .030" and have the heads milled, then you will create some serious HP. Not as much as a 429 but the 385 series motor was known for its ability to create torque. Hope this helps.
HeavyMetal (Rod)
77 F100 429CJ

 

[font size="1" color="#FF0000"]LAST EDITED ON 27-Aug-00 AT 01:48 PM (EST)[/font][p][font size="1" color="#FF0000"]LAST EDITED ON 27-Aug-00 AT 01:39 PM (EST)[/font]

it has the 2 1/8" intake and 1 9/16" exaust measured with metal ruler accross the valve head...

I plan on running about 10:1 compression, Performer RPM intake, a 800cfm edlebrock carb, .525lift 290*duration cam, headers w/2.5" duals, flowmaster 40series mufflers. I don't know how acurate Desktop dyno 2000 is but It shows about 390HP @ 4500rmp and 504ft-lb @ 2500 with the lunati cam I want to go with....
one more quick question, about how high can I rev this engine? I figure about 6000rpm max (hell I got 5000rpm out of my 300-6)

 

Hey,
Bog'n About 6000 is about it, 6500 if it is a 429.
HeavyMetal (Rod)

 

Quote on horsepower of 429 v 460.

"Not as much as a 429 but the 385 series motor was known for its ability to create torque. Hope this helps.
HeavyMetal (Rod)
77 F100 429CJ "


What do base this info on?? All things being equal the 460 will make more HP AND torque then a 429. If you're trying to intimate the less then a .3" of stroke makes the 429 have more HP. then I guess the 302 with its smaller stroke will have more HP then a 351. BTW the 429 AND 460 are both 385 series engines.

 

I base it on the fact that the 429 runs higher compression ratio compared to the 460 and is rated by Ford to create more HP, However the 460 creates more torque. Also the 429 has larger valves and passages in the heads. Block is the same Pin height on the pistons are different, smaller combustion chambers on the 429 increase the comp. Depending on the year of the heads from 10.5 to 11.3 HeavyMetal (Rod)

 

I digress. You're talking pure factory engines. I thought you were talking after all the machine work and mods you'd mentioned. There are some 460's, however, that match the CJ ratings of 365 HP in '69. They were available in the Lincolns.

I did say all things being equal meaning compression, heads, cam etc. the 460 obviously would have more HP and Torque.

 

If you have 73' heads, you'd be better off searching for a set from 71' or earlier. The likelyhood of you having Police Interceptor heads is doubtful, besides, I feel that the early heads are superior to the Interceptor heads anyway. Especially if you are going to rev the motor higher. If I were you I wouldn't push 6000, that's a little high for a big block. The big block I run I don't like to get above 5000, I know I can but big blocks aren't meant to be revved up like that. If you get an early set of heads, you'd be able to attain 450 horse and 55 ft. lbs. of torque with NO problem. Good luck.

Rob
"Stuck with a m*par, Settle for a ch*vy, Happy with a Ford!!!!"

 

I brought a intake valve to work and mic'd it and it does have 2.19 intake valve and it is a factory 4bbl car with D3VE heads, are there other numbers to look for to tell exactly what heads these are?

 

I have to intervine here, as I have just spent the last 7 months restoring a 69 lincoln 460 to factory specs. The highest factory comp. was 10.5:1 in 68 to mid 70 dropped eventually in 72 to 8.5:1. HP was the same for the 69 460 and 429, attributed to higher revs from the 429 and Possibly bigger valves in the 429 heads although I don't think so. Unless you are talking 429 SCJ heads and I'm pretty sure these will NOT interchange with the 460 or the regular 429's for that matter. I base my info on a swap chart I have found as well as personal experience.
Hope this helps.
Foxxx

 

foxx, what info are you using? My sources say the CJ or SCJ heads WILL interchange. In fact I'm having a hard time finding a difference except that some CJ's had adjustable rockers and some had 4 bolt mains wher the SCJ all had the above plus a different carb.

 

Hi, I have to agree with stang. The heads are interchangable. You may have to change intake manifold depending on the combo you come up with. But the block on a 429 and a 460 are the same. some of the cj's had a 4 bolt main. The boss engine is the one that does not fit anything except boss. HeavyMetal (Rod)

 

Ok everyone, Here's the deal from what I know. 429's & 460's are identical EXCEPT for Crank and Piston pin Height. You can rev a 429 higher because it has a shorter stroke. If you want to make power, go with the 460 because anything, and I mean ANYTHING you can do to a 429 you can do to a 460. The blocks are identical. If you have a 429 with 4 bolt mains, slap a 460 crank and piston's in it and you will have a 460 with 4 bolt mains. As far as the heads are concerned. The main difference is port sizes and how well the flowed air. You have to be careful when adjusting the valves on a SCJ and I think the CJ also. Make sure after you take the valve covers off you place the two top corner bolts back into their holes or else you will create a vaccum leak so bad that the motor probably won't run. Hope that helps.

Rob
"Stuck with a m*par, Settle for a ch*vy, Happy with a Ford!!!!"