Heads for 460

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Jan 7, 2002 | 09:38 AM

CollinsCD

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From: Odessa, Delaware

Heads for 460

I am about to build a 460 (DIVE 6015-A2) that has D3VE-A2A heads. I want to bump up the c/r to get more power for towing and hauling but want to be able to run on pump gas. Should I look for a set of earlier heads or are there things I can have done to mine that would help with performance? What would be the better cost option for these heads? This motor will be smog free as I do not need to pass the sniffer test.

Thanks!

Craig

Jan 7, 2002 | 11:05 PM

LxMan1

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From: Louisville,Ky.

Heads for 460

[updated:LAST EDITED ON 08-Jan-02 AT 00:06 AM (EST)] I was informed that the D0VE heads would raise the compression of my 77 with D3VE heads on it now to a little over 9 to 1. I am not sure how it would do on a 71 shortblock. It may have higher compression pistons in it since they didn't start dropping compression ratios until 1972. If it has the earlier model pistons in it, I would guess that you would end up around 10.5 to 1. This would surely run on 93 octane, and would probably be ok on 89 if the timing isn't too high and the carb isn't too lean. Jimmy

Jan 8, 2002 | 12:20 AM

Mil1ion

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Heads for 460

Do your pistons have ONE or TWO eyebrows on them?
Having ONE eyebrow is better for compression ratio than having TWO

Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving Up MY Memory For When I Develop Alzheimer's"

78 F-150 429CJ C6 ,Silver w/Explorer Pkge
641/2 Mustang,Pre-World's Fair Car #8092
64 Fairlane S/C waiting for a 390-4spd.
68-Mustang.Sunlit Gold 80,000 miles

Jan 8, 2002 | 05:04 AM

CollinsCD

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From: Odessa, Delaware

Heads for 460

I will have to look at the pistons to see how many eyebrows they have. It is funny that the block is a D1VE but the motor came out of a 1976 Thunderbird. I bought the car from the original owner who said the motor is the one that came in the car. I pulled the motor and tranny, then junked the car.

Craig

Jan 8, 2002 | 10:42 AM

Mil1ion

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Heads for 460

If they DIDN'T Change the block design it's not really funny that the 71 design is in a 76 car,that's the way they do things at Ford.
The V designation was used in Lincolns too as well as the T-Bird..

Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving Up MY Memory For When I Develop Alzheimer's"

78 F-150 429CJ C6 ,Silver w/Explorer Pkge
641/2 Mustang,Pre-World's Fair Car #8092
64 Fairlane S/C waiting for a 390-4spd.
68-Mustang.Sunlit Gold 80,000 miles

Jan 8, 2002 | 04:57 PM

Bull

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From: Denver USA

Heads for 460

I was looking at the Head interchange guide and it shows that a D0VE heads of 72-73 short blocks yield 9.6 CR as 9.3 CR on the later ones.

Jan 8, 2002 | 06:13 PM

Mil1ion

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Heads for 460

What do *YOU* guys mean when you put SHORT BLOCKS in your posts?

To me,I've always known :

A SHORT BLOCK is an Engine(usually rebuilt)WITHOUT Heads ,Exhaust manifolds, Intake manifold.

A LONG BLOCK is an engine(usually rebuilt) WITH the heads ,exhaust manifolds and Intake manifold

Dennis
Please Don't Ask Me Any Tough Questions As:
"I'm Saving Up MY Memory For When I Develop Alzheimer's"

78 F-150 429CJ C6 ,Silver w/Explorer Pkge
641/2 Mustang,Pre-World's Fair Car #8092
64 Fairlane S/C waiting for a 390-4spd.
68-Mustang.Sunlit Gold 80,000 miles