When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I was given a small block with Powerpak heads on it.
I have no need for the heads and am wondering if they have any value to a restorer needing the correct heads for a 283 or 327.
Would the casting numbers be enough to identify these heads? Or is more info or measurements needed?
I don't know if these are common anymore, in the '80's I hade two 283's w. Powerpak's in pickups, I'd hate to scrape something that someone may need.
Are these rare enough to be worth the cost of shipping?
I was given a small block with Powerpak heads on it.
I have no need for the heads and am wondering if they have any value to a restorer needing the correct heads …….
“Powerpak” boy that bring back fond memories …. That was the ~ 9.5:1 hi compression triangle heads, four barrel, dual exhaust for the 283. Yeah, anybody that wants to build/experience a correct 283, would just love! to have those!! It’s all about finding the right buyer.
Last edited by 66427-450; Aug 25, 2023 at 11:02 AM.
The heads have casting #3795896 and casting date E1763.
May 17th 1963? Does that format indicate which engine plant?
There's also a C1 and GM X1 cast in them.
These pictures are as the head came off the engine, I don't have time right now to clean them or break them down for inspection.
The other head is similar.
Let me know if there are other pictures I should take.
Powerpak Heads?
…. That was the ~ 9.5:1 hi compression triangle heads, four barrel, dual exhaust for the 283. Yeah, anybody that wants to build/experience a correct 283, would just love! to have those!! It’s all about finding the right buyer. 
