- Joined
- Aug 3, 2010
- Posts
- 30,871
- Reaction score
- 29,634
- Location
- Usually not in Ohio
- First Name
- Andy
- Truck Year
- '77, '78, '79, '84, '88
- Truck Model
- K5 thru K30
- Engine Size
- 350-454
As I understand it most came from trucks.
Jim makes an important point. Many of those heads have developed cracks. I bought from a trusted automotive cylinder head machine shop to ensure no cracks or other issues.
'96-up trucks.
Imho, they mostly all crack. 99% of the time, it's insignificant and it doesn't hurt the operation or the longevity.