weak 460?

Started by jimmydean, October 03, 2008, 08:45:50 PM

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jimmydean

October 03, 2008, 08:45:50 PM
  I have a 79 Bronco with a stock 460 that has a Holly 650 with vacume secondaries. I put 4.88 gears in it hoping that would help turn the 38" boggers I have on it.  My problem is that its a dog...  In high and low lock. The last bog I was at, the tach never got over 3500 no matter what I did. In turn, the secondaries didnt open up. Im ready to do some up grades to the motor so I dont look like a chump any more but I also dont want to break the bank.  Any idea's????

Bigdaddy

#1
October 03, 2008, 08:49:54 PM Last Edit: October 03, 2008, 08:51:58 PM by Bigdaddy
get with ranger dave, he knows how to make a 460 scream!


Free your mind...and your ass will follow!

NEVER ARGUE WITH AN IDIOT, THEY'LL BRING YOU DOWN TO THEIR LEVEL AND BEAT YOU WITH EXPERIENCE!!

jimmydean

#2
October 03, 2008, 09:03:24 PM
  OK. Thanks!!    being a hot pink newbie, how do I get with him?

blasterguy911

#3
October 03, 2008, 09:06:58 PM
id find his profile and send him a pm
1972 bronco

Orangecrush

#4
October 03, 2008, 09:20:28 PM
maybe worn out cam, check compression, that';ll tell you alot about whats wrong. timing off,could be a list of things, but id check compression first, if all else fails put a chevy in  it!!!  j/k   hope this helps.

Ranger Dave

#5
October 03, 2008, 10:01:46 PM
ill  help ya  how  ever  i can.    ;D 


  OC  wont  let me   drive  his  chevy  ==roll
God, Gun's,  Automobile's

Orangecrush

#6
October 03, 2008, 11:14:04 PM
oh your drivin it !!  I'll see to it!    you'll never be same afterwards, lol 


Dave will get ya headed in the right direction!!!!

Ranger Dave

#7
October 03, 2008, 11:17:01 PM
Quote from: Orangecrush on October 03, 2008, 11:14:04 PM
oh your drivin it !!  I'll see to it!    you'll never be same afterwards, lol 


Dave will get ya headed in the right direction!!!!


==roll  ==roll  ==roll
God, Gun's,  Automobile's

RIP_K52007

#8
October 03, 2008, 11:54:35 PM
loll After that he can drive a Chevy with a buick big block ;D ... but its not dun yet.

Ranger Dave

#9
October 04, 2008, 12:07:08 AM
ill  just  have to think backwords,  ill be  all right  ;D

i think  my  ford  dose  just   fine. ;D

God, Gun's,  Automobile's

Econo-box from Hell

#10
October 04, 2008, 03:04:57 AM
'79 460 with smogger heads was no killer even running good.   See what you can do to help your current situation but you will probably need to swap out your heads.
My keyboard can go through more stuff than your keyboard.

==nw geoo ==wn 

jimmydean

#11
October 04, 2008, 05:06:39 PM
    ok. thanks for the input.  and i aint puttin a chevy motor in it either!!  lol

Swampthing

#12
October 04, 2008, 05:56:15 PM
find a 73 or older 429,or 460,they came with good heads..and ran very good.  they had what was called "dove" heads..they was actually cast as D3VE.  old lincolns with 429's would be a good choice.
82 scrambler ,blazer frame ,small block.It runs everything from 33's-44's....83 cj7.full size chevy axles..48 inch terra tires.. 83 cj7... purple. 350 chevy toyota axles,37 inch boggers..have fun and keep the rubber side down.. Swampy

Econo-box from Hell

#13
October 05, 2008, 01:14:47 AM
Quote from: jimmydean on October 04, 2008, 05:06:39 PM
    ok. thanks for the input.  and i aint puttin a chevy motor in it either!!  lol

460s are great engines.  Smogger heads just don't let them run as good as they could.
My keyboard can go through more stuff than your keyboard.

==nw geoo ==wn 

TBigLug

#14
October 05, 2008, 09:51:31 AM
Quote from: Orangecrush on October 03, 2008, 11:14:04 PM
oh your drivin it !!  I'll see to it!    you'll never be same afterwards, lol 


Dave will get ya headed in the right direction!!!!


==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll ==roll  ==roll  ==roll

Oh man, he so went there! loll
Big John's the name, big horses are my game!

"Casper" 2004 Chevy Cavalier, 2.2, 5 sp. (g/f dd)
"The Hoopty" 1995 Mercury Grand marquis, 4.6L (my DD)
"My Chevy" 1992 Chevy Z71, 5.7L, 700R4 (Horse Hauler, Farm Truck, Cruiser)

"I'll keep my God, freedoms, constitution and my guns. Obama, you keep your change!" -Protesters Sign

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jimmydean

#15
October 05, 2008, 06:17:25 PM
  what exactly are these " smogger heads"?  and does every 460 have them?

Ranger Dave

#16
October 05, 2008, 06:46:21 PM Last Edit: October 05, 2008, 06:48:49 PM by Ranger Dave
Quote from: jimmydean on October 05, 2008, 06:17:25 PM
  what exactly are these " smogger heads"?  and does every 460 have them?

yes    every 460  has  them.  there  still  6000  rpm heads. 

there  somthing  else  going on with  your   like  week  comp,   sec on carb  not  opening,  worn  cam, 


i say check the  comp  in  cyclernders.

this is  stock  460  running   

God, Gun's,  Automobile's

Orangecrush

#17
October 05, 2008, 10:13:55 PM
Dave knows how to make those fords scream!!

Econo-box from Hell

#18
October 06, 2008, 02:41:37 AM
Mid to late 70s heads on the 460s were crap.  I remember my step dad's 77 Mercury Marquis had a 460 in it and it was a dog. 

There are many variables like compression, ignition, exhaust restriction (plugged catalytic converter, etc).

Anybody that says that the mid to late 70s heads make just as much power as any other head are living in a dream world.  A mid to late 70s 460 can be made to run good (I think they were rated around 180 hp), but I wouldn't take it to the truck pull.  But then again, what do I know.  I've only got 27 years of experience and a Master Mechanic's certification. 

I remember wrenching on these vehicles (as in all domestic) back in the very early 80s.  The quality was horrific, the performance was non-existant, and the vehicles ran poorly from day one.  I remember the auto industry was in very rough shape at the time and the EPA was ramming emissions requirments down the throats of the manufacturers faster than the technology could keep up.  Add this to the fact that this was the hay-day for Unions getting anything they demanded from the manufacturers (can you say $22.00/hr unskilled line works in the late 70's).  The quality and performance of the vehicles back then was just awful.
My keyboard can go through more stuff than your keyboard.

==nw geoo ==wn 

RIP_K52007

#19
October 07, 2008, 02:04:59 AM
Yeah, might want to look for older heads, i gotta look for older heads for my 455, its a 75' has the lowest compression out of any of the 455's. Lotta polution issues in the 70's they used lower compression to somehow lower the amount of gasses coming out of the exhaust.
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