1959 283 heads - Corvette Forums - Corvette Enthusiast Site


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Old 01-30-2018, 06:03 PM
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Default 1959 283 heads

Listing for sale a set of 283 small block heads. Are high output heads.

Are powerpack 1.72 heads

3755550 L38 is date code. Translates to Dec 3, 58. Went in early 59 Corvette

Heads will need to be gone through, have valve seats ground.

Are located in Grand Island, Ne.

Serious potential buyers can reach me at 402 705 6031

Willing to ship. Buyer pays all shipping.

$1100 obo



Can accept Paypal.





$1100

Last edited by Drew70; 02-02-2018 at 02:05 PM.
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Old 01-31-2018, 01:24 PM
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Show the casting marks on the ends. That'll tell ya what ya have. SB heads are SB heads. 265, 283, 327, 350, and even 400. They all interchange.
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Old 01-31-2018, 04:18 PM
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Old 02-01-2018, 05:45 PM
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Default Casting information

Casting shows stamp of L38. Manufactured Dec 3, 58. Are 1.72 power pack heads
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Old 02-06-2018, 02:54 PM
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As I recall, that is a 1.94 power pack.. The 2.02, "Fuelies" have the double hump casting. This may help.

Last edited by C3 Starship; 02-06-2018 at 03:46 PM.
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Old 02-10-2018, 12:59 PM
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Weird. Because prior to this everyone is telling me they are 1.72 valves. Have these posted in numerous places all over Facebook buy, sell, trade groups from sbc groups to vintage Corvette groups. Everyone says 1.72. Even 80+ year old GM trained mechanic that has seen heads in person says, 1.72. So I am not sure what they are. I am no expert on these old heads. Not debating you, not telling you that you're wrong. I just have no clue at this point. Thanks
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Old 02-13-2018, 03:03 PM
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The only way to know for sure is to measure the intake valve. Since you are selling the heads you will need to pop them off anyway. That will settle it. As I understand, the 1.72 was the original stock intake on the 265, V-8 from 55. I could be wrong, wouldn't be the first time.
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