Author Topic: 289 / 302 block casting  (Read 271 times)

Offline cobraboy

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289 / 302 block casting
« on: October 31, 2017, 04:37:35 PM »
Hi Guys
Some questions regarding 289 and 302 blocks.

Am I right in assuming that all 289 blocks had a well or depression on the top surface behind the intake ?

I know that during the changeover from 289 to 302 some 302 blocks were built up as 289's but did these blocks have a flat area behind the intake ?

In other words is it safe to say that all blocks with a well are 289 and all blocks with a flat area are 302 blocks ( even if some were actually built as 289 engines )

Did any 289 engine across any application have an engine number in the area above ?

Thank you.

Mark
13th April 1965 Dearborn K GT on the other side of the pond.

Offline krelboyne

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Re: 289 / 302 block casting
« Reply #1 on: October 31, 2017, 04:58:06 PM »
I thought that the blocks with the flat area behind the intakes were 1968 blocks, and have C8... casting numbers. Flat area for accepting the VIN stamp.
Scott Behncke - Carcheaologist
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Offline cobraboy

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Re: 289 / 302 block casting
« Reply #2 on: October 31, 2017, 06:24:57 PM »
Thanks
So C8 would make all the flat area blocks 302 then ?
13th April 1965 Dearborn K GT on the other side of the pond.

Offline cobraboy

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Re: 289 / 302 block casting
« Reply #3 on: November 03, 2017, 04:52:53 AM »
Can anyone nail this down ?
13th April 1965 Dearborn K GT on the other side of the pond.

Offline ruppstang

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Re: 289 / 302 block casting
« Reply #4 on: November 03, 2017, 09:19:08 AM »
I had all ways thought the ones that had the flat area for the VIN were 302's but I think there was a thread here that some posted a picture of a block with the flat boss that was a 289. Since the then I found one too. I think the vast majority of them are 302's.

Offline caspian65

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Re: 289 / 302 block casting
« Reply #5 on: November 03, 2017, 10:53:43 AM »
That's the easiest way to ID a 302... the flat spot behind the intake.
Charles Turner - MCA/SAAC Judge
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Offline cobraboy

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Re: 289 / 302 block casting
« Reply #6 on: November 03, 2017, 12:40:27 PM »
OK guys thank you.
I accept that the majority or the flat area blocks would be 302, apart from the late 289's that used the 302 block, but built as 289 internally.
13th April 1965 Dearborn K GT on the other side of the pond.

Offline ruppstang

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Re: 289 / 302 block casting
« Reply #7 on: November 03, 2017, 10:07:56 PM »
OK guys thank you.
I accept that the majority or the flat area blocks would be 302, apart from the late 289's that used the 302 block, but built as 289 internally.

What I was saying is that there were some 289 blocks with the flat boss cast in them but the majority were 302.

Offline cobraboy

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Re: 289 / 302 block casting
« Reply #8 on: November 04, 2017, 04:48:57 AM »
Ah, ok thank you for the clarification.
13th April 1965 Dearborn K GT on the other side of the pond.