460 information
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460 information
I have a 73 ranchero with 400/c6 and I am going to put in a 460 in a year or two. I am curious if the brackets are the same for the A/C and P/S between the two engines.
Also, does anyone have flow numbers for stock production heads (non-cj)?
As for gears I might stick with the factory 3.00 or go to 3.25, definetly with a posi.
Are the edelbrock or ford heads good for the street in a 4300 pound car? I want close to 500 hp and similar torque peaking at 5,000 or so to keep the engine from revving too high and keep the powerband from close to idle.
I really like the PAW short block 460 kit (balanced, moly rings, etc..) I have read one post saying they were happy with the PAW long block kit, does anyone else have an opinion after owning one?
And finally, what size cam would be good for this engine which sees 98% street and the occassional freeway on-ramp?
A little long, but very curious. Thanks.
Also, does anyone have flow numbers for stock production heads (non-cj)?
As for gears I might stick with the factory 3.00 or go to 3.25, definetly with a posi.
Are the edelbrock or ford heads good for the street in a 4300 pound car? I want close to 500 hp and similar torque peaking at 5,000 or so to keep the engine from revving too high and keep the powerband from close to idle.
I really like the PAW short block 460 kit (balanced, moly rings, etc..) I have read one post saying they were happy with the PAW long block kit, does anyone else have an opinion after owning one?
And finally, what size cam would be good for this engine which sees 98% street and the occassional freeway on-ramp?
A little long, but very curious. Thanks.
Postmaster
Joined: Aug 2001
Posts: 2,882
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From: Nevada
460 information
Early ('68-78) non-CJ stock head flow - I 270-290cfm, E 125-135cfm, iron CJs not much better.
I'm in the process of assembling a 500hp+ 460 with Edelbrock heads, specs are a link near the bottom of this page:
http://www.geocities.com/marsha89129/
Edelbrock heads will support about 650-700hp, FRPP Aluminum CJs higher than that. Difference is velocity. The Edelbrocks are superior in lower rpm ranges while CJs shine at higher rpms.
I used a PAW 460 kit several years ago and was very satisfied with the machining quality and hard parts. Great thing is you can spec whatever you want.
Cam is a big issue. I'd suggest you become familiar with the 385 and then decide what you want. You'll have to get closer to 6000rpm to make 500hp with a street c/r.
Compression ratio is only limited by gasoline availability and heads. These engines were originally produced with 10.5 and 11.0:1 c/r. Now, with current premium (91-94 octane) pump gas, you're limited to about 10.0:1 on iron heads and 11.0:1 with aluminum.
My brother has a '78 Ranchero with an iron head CJ engine/3.70 gears and traction is a major problem. With near stock suspension, it just doesn't hook.
I'm in the process of assembling a 500hp+ 460 with Edelbrock heads, specs are a link near the bottom of this page:
http://www.geocities.com/marsha89129/
Edelbrock heads will support about 650-700hp, FRPP Aluminum CJs higher than that. Difference is velocity. The Edelbrocks are superior in lower rpm ranges while CJs shine at higher rpms.
I used a PAW 460 kit several years ago and was very satisfied with the machining quality and hard parts. Great thing is you can spec whatever you want.
Cam is a big issue. I'd suggest you become familiar with the 385 and then decide what you want. You'll have to get closer to 6000rpm to make 500hp with a street c/r.
Compression ratio is only limited by gasoline availability and heads. These engines were originally produced with 10.5 and 11.0:1 c/r. Now, with current premium (91-94 octane) pump gas, you're limited to about 10.0:1 on iron heads and 11.0:1 with aluminum.
My brother has a '78 Ranchero with an iron head CJ engine/3.70 gears and traction is a major problem. With near stock suspension, it just doesn't hook.
New User
Joined: Aug 2002
Posts: 1
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From: omaha douglas
460 information
I was wondering if a 460 out of an early 90s truck can make some big hp numbers and what might need to be done in order to do this, i want to put it in a 92 coupe, any ideas thanks wes
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Postmaster
Joined: Aug 2001
Posts: 2,882
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From: Nevada
460 information
In 1979 Ford began using the vacuum casting method for blocks to reduce production costs. That resulted in a block with less material around the cylinders, pan rail and main bearing webs. Everything will still interchange, but if your're after serious hp, I'd suggest locating a '68-78 block.
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From: Indiana
460 information
[updated:LAST EDITED ON 30-Aug-02 AT 04:11 PM (EST)]georgedavila, I am using a 79 460 block that I had to bore 40 over to clean out a casting imperfection in a cylinder bore. It was a small pit which resembled making a punch mark on metal. It was not something the motor injested because there were no marks on the piston and this was straight in horizontally on the cyinder wall.
Could this be related to what you are saying here?
The machinist who did my block work was puzzled about this. He said it was like an air pocket, just a place that did not fill out when the block was cast. Had been there from day one.
Could this be related to what you are saying here?
The machinist who did my block work was puzzled about this. He said it was like an air pocket, just a place that did not fill out when the block was cast. Had been there from day one.
