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GM HEI Distributor Difference ??

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Old Mar 9, 2005 | 05:33 PM
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Default GM HEI Distributor Difference ??

Just wondering if there is any difference between the big block and small block GM HEI distributors.

If there is, can someone please explain the difference.

thanks
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Old Mar 9, 2005 | 06:18 PM
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The single point and TI distributors will interchange, so it's reasonable to assume that HEIs will, too.

Duke
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Old Mar 9, 2005 | 07:00 PM
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ALL Chevy V8 distributors are interchangeable. On a mechanical distributor, the centrifugal and vacuum advances may not be appropriate, and the drive gears can change based on the camshaft material. But they fit.

RACE ON!!!

[Qualification] On standard, passenger car, deck height blocks.
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Old Mar 9, 2005 | 08:11 PM
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Excellent thanks for the responses.
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Old Apr 3, 2005 | 02:31 PM
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Originally Posted by CFI-EFI
ALL Chevy V8 distributors are interchangeable. On a mechanical distributor, the centrifugal and vacuum advances may not be appropriate, and the drive gears can change based on the camshaft material. But they fit.

RACE ON!!!

[Qualification] On standard, passenger car, deck height blocks.
348 and 409 distributors will not fit small blocks or later model big blocks
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Old Apr 3, 2005 | 06:37 PM
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Are you sure?

RACE ON!!!
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Old Apr 3, 2005 | 06:43 PM
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Originally Posted by CFI-EFI
Are you sure?

RACE ON!!!
yep i owned them new. i do not know if the Z-11 engine,W block 427 based on the 409 but used a air gap maniflold with a seperate tappet chamber cover. it may have used a different distributor
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Old Apr 4, 2005 | 10:04 AM
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I didn't forget the "W" engines when I made that statement, but I ASSUMED, since all others were interchangeable, that those were, too. I stand corrected, and thank you. I've learned something.

RACE ON!!!
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Old Apr 4, 2005 | 10:22 AM
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Originally Posted by CFI-EFI
I didn't forget the "W" engines when I made that statement, but I ASSUMED, since all others were interchangeable, that those were, too. I stand corrected, and thank you. I've learned something.

RACE ON!!!
considerate it a day lost when you do not learn something new.
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