460 problem
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Freshman User
Joined: Aug 2016
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Just wanted to put out a follow up; I know a lot of posts never reach a solution and people are left wondering what happened.
The pin at the distributor gear shattered and in turn busted the timing chain. I had wanted to replace the motor at some time anyway because it was from a 1975 2wd, so I elected to have a Jasper with an RV cam put in. Been very satisfied with it.
The pin at the distributor gear shattered and in turn busted the timing chain. I had wanted to replace the motor at some time anyway because it was from a 1975 2wd, so I elected to have a Jasper with an RV cam put in. Been very satisfied with it.
FTE Legend
Joined: Nov 2015
Posts: 30,935
Likes: 4,124
From: Angier, NC
Yes thank you for the follow up.
I got to ask a silly question? How did the old 460 know it was a 1975 and from a 2wd?
To me a motor is a motor and does not know what year it is or from what it cam out of.
Yes a cam profile maybe a little different or carb jetted different but should run good just the same.
Dave ----
I got to ask a silly question? How did the old 460 know it was a 1975 and from a 2wd?
To me a motor is a motor and does not know what year it is or from what it cam out of.
Yes a cam profile maybe a little different or carb jetted different but should run good just the same.
Dave ----
Thread Starter
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Freshman User
Joined: Aug 2016
Posts: 39
Likes: 0
Yes thank you for the follow up.
I got to ask a silly question? How did the old 460 know it was a 1975 and from a 2wd?
To me a motor is a motor and does not know what year it is or from what it cam out of.
Yes a cam profile maybe a little different or carb jetted different but should run good just the same.
Dave ----
I got to ask a silly question? How did the old 460 know it was a 1975 and from a 2wd?
To me a motor is a motor and does not know what year it is or from what it cam out of.
Yes a cam profile maybe a little different or carb jetted different but should run good just the same.
Dave ----
Posting Guru
Joined: Apr 2011
Posts: 1,636
Likes: 5
From: Orlando area
Yes thank you for the follow up.
I got to ask a silly question? How did the old 460 know it was a 1975 and from a 2wd?
To me a motor is a motor and does not know what year it is or from what it cam out of.
Yes a cam profile maybe a little different or carb jetted different but should run good just the same.
Dave ----
I got to ask a silly question? How did the old 460 know it was a 1975 and from a 2wd?
To me a motor is a motor and does not know what year it is or from what it cam out of.
Yes a cam profile maybe a little different or carb jetted different but should run good just the same.
Dave ----
The early blocks had shorter deck heights (either 10.300" or 10.310"), the D9 block had a taller deck height (10.322").
All pre-79 engines are internally balanced - all 79 up are externally balanced.
The D9 block (all engines 1979 up) have longer cylinder walls (extend .200" deeper into block) so an early internally balanced crank will not fit in a D9 block.
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