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  #1  
Old 10-23-2004, 03:49 AM
Mopard Mopard is offline
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Post 440HP & 440 standard questions. Need info

First of all is there any way possible to tell a 440HP motor from a 440 6-Pack motor without the intake or tearing the motor down?


What is the difference between a 1967 440Hp and and 1967 440 standard.


What was changed between a 1967 440Hp and a 1970 440HP.


What is the best set of heads for 440hp and the numbers.
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  #2  
Old 10-23-2004, 01:01 PM
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ehostler ehostler is offline
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Quote:
Originally Posted by Mopard
First of all is there any way possible to tell a 440HP motor from a 440 6-Pack motor without the intake or tearing the motor down?

What is the difference between a 1967 440Hp and and 1967 440 standard.
Compression ratio

Quote:
What was changed between a 1967 440Hp and a 1970 440HP.
Higher compression pistons

Quote:
What is the best set of heads for 440hp and the numbers.
It depends on how much money you are wanting to spend, what else is being done to the engine, and what you hope to get out of the engine.
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  #3  
Old 10-23-2004, 02:09 PM
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MoparMarcIdaho MoparMarcIdaho is offline
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Theres not a whole lot of difference betwen HP and family car application engines in the early years.Windage try and heavier valve springs and a little more cam is about it.Should have a C for 67 and closed chamber heads in that year.Im not sure if there was a 6 pak option but there was for sure in 68.6 pak rods are heavier than the rest also.The 70 version has open chamber heads with larger valves compared to 67.
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  #4  
Old 10-23-2004, 03:03 PM
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There was no 6 pack version in 68. The 6 pack started as a 69½ option.

In 1967, the HP and non HP heads were the same closed chamber head. In 1968 the B/RB engines went to the open chamber 906 head. They changed the piston, to make up for the open chamber head.

As far as I know, the HP engine didn't get the windage tray until 1968.

I did forget to mention that the HP engine has a different cam
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Old 10-23-2004, 03:04 PM
John Kunkel John Kunkel is offline
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There is no way to tell a 6-pack from a HP long block without disassembly.

In '67 the HP and standard 440 both had the same compression ratio (10.1-1). The HP got a better cam, larger exhaust valve, high flow exhaust manifolds and improved spark and fuel.

The main differences between the '67 and '70 HP 440 are different heads ('68-'70 are open chamber), windage tray, heavy rods and bigger carb. The '70 motor actually has less compression than the '67 (9.7-1) because the '67 piston was used in the '70 motor with larger combustion chambers.
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  #6  
Old 10-23-2004, 03:39 PM
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MoparMarcIdaho MoparMarcIdaho is offline
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So pistons are the same from 67 to the start of the smogger years then?
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  #7  
Old 10-24-2004, 04:55 PM
John Kunkel John Kunkel is offline
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No, '67 and '70 pistons are the same, '68-'69 are the same.

'67 got it's compression from small chambers, '68 and '69 had open chambers and needed a taller piston to maintain the 10.1 CR. '70 was the first year of the reduced compression (emissions) so the '67 piston was used in the '70-'71 with open chambers to bring the compression down to 9.7.

The exception was the 6-pack which remained at 10.5-1.
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  #8  
Old 10-24-2004, 11:57 PM
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MoparMarcIdaho MoparMarcIdaho is offline
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Thanks-I get it now.
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  #9  
Old 10-28-2004, 09:56 AM
Mopard Mopard is offline
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Quote:
Originally Posted by ehostler
Compression ratio


Higher compression pistons


It depends on how much money you are wanting to spend, what else is being done to the engine, and what you hope to get out of the engine.
Well, as of now I will most likely start with a long block crate engine. Completely stock except for a MSD ignition box and MSD coil with a MSD dist. Did I say MSD?.

As for a 6-pack motor I was looking to purchase a used one.
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  #10  
Old 10-28-2004, 10:00 AM
Mopard Mopard is offline
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Quote:
Originally Posted by MoparMarcIdaho
Theres not a whole lot of difference betwen HP and family car application engines in the early years.Windage try and heavier valve springs and a little more cam is about it.Should have a C for 67 and closed chamber heads in that year.Im not sure if there was a 6 pak option but there was for sure in 68.6 pak rods are heavier than the rest also.The 70 version has open chamber heads with larger valves compared to 67.
Thanks for the info. I was thinking about purchaseing a 6-pack motor. At least that is what I was told it was. Had thought about purchaseing it in the past but decided to pass on it. I wanted to make sure it was a 6-pack engine. I will try to find out what year it is also.
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  #11  
Old 10-28-2004, 10:02 AM
Mopard Mopard is offline
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Quote:
Originally Posted by ehostler
There was no 6 pack version in 68. The 6 pack started as a 69½ option.

In 1967, the HP and non HP heads were the same closed chamber head. In 1968 the B/RB engines went to the open chamber 906 head. They changed the piston, to make up for the open chamber head.

As far as I know, the HP engine didn't get the windage tray until 1968.

I did forget to mention that the HP engine has a different cam.
Speaking of cams What is the right one for the job? Of course I guess that goes back to what I want out of the engine.?
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  #12  
Old 10-28-2004, 10:05 AM
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MoparMarcIdaho MoparMarcIdaho is offline
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Quote:
Originally Posted by Mopard
Speaking of cams What is the right one for the job? Of course I guess that goes back to what I want out of the engine.??
Right-stick or auto?Street or strip?
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  #13  
Old 10-28-2004, 10:08 AM
Mopard Mopard is offline
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Quote:
Originally Posted by John Kunkel
There is no way to tell a 6-pack from a HP long block without disassembly.

In '67 the HP and standard 440 both had the same compression ratio (10.1-1). The HP got a better cam, larger exhaust valve, high flow exhaust manifolds and improved spark and fuel.

The main differences between the '67 and '70 HP 440 are different heads ('68-'70 are open chamber), windage tray, heavy rods and bigger carb. The '70 motor actually has less compression than the '67 (9.7-1) because the '67 piston was used in the '70 motor with larger combustion chambers.
I wished their was a way to tell the difference with a 6-pack from a 440HP 375Hp motor with out the intake.
So what was the difference between the 67 440Hp cam and the 67 440 Non HP cam?
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  #14  
Old 10-28-2004, 10:11 AM
Mopard Mopard is offline
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Question

Quote:
Originally Posted by John Kunkel
No, '67 and '70 pistons are the same, '68-'69 are the same.

'67 got it's compression from small chambers, '68 and '69 had open chambers and needed a taller piston to maintain the 10.1 CR. '70 was the first year of the reduced compression (emissions) so the '67 piston was used in the '70-'71 with open chambers to bring the compression down to 9.7.

The exception was the 6-pack which remained at 10.5-1.
I have always heard that the 1967 440HP was the best of the 440s, with the exception of the 6-pack motor.
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  #15  
Old 10-28-2004, 10:22 AM
Mopard Mopard is offline
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Quote:
Originally Posted by MoparMarcIdaho
Right-stick or auto?Street or strip?
Well this comeing spring I will be building a 440Hp with an auto tranny car.

Then when I am done I will be building a 440 HP 4-speed car So I will need info for both.

The automatic car will have either a 2500 to 3500 stall converter, and shift kit in a 727. But with plans on driveing it on very, short trips around town.

The 4-speed car will have a low geared rear end and more of a mild strip car.
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