I have a set of 643 castings. They have a bolt snapped off in the header hole which I am getting extracted. I need some 561s. Anyone want to trade?

 

I have 2 sets. What shape are you looking for? Why you wanting 561s instead?

 

I want usable heads. I'm putting them on my Camaro. The 561s flow better in unported form. I stripped a bolt hole in my heads that are on the car. I have a set of 643s in the garage that I can trade. I plan on milling the 561s and getting a good valve job. The 643s wont serve the purpose. If you have a set of good heads with no stripped holes and no broken bolts then we can deal.

 

Sorry I don't know what heads you are speaking of but I need small chamber heads. What are yours?

 

The GM casting number... it's on the head near the valve springs.

 

I have a set of "rebuilt" 561s with fresh valve job and been surfaced. I planned on selling them on ebay to fund my turbo build. If you want to make an offer let me know. I have 2 sets of 643s also and one set is ported with ferraras. So let me know a money offer