Finally got around to getting the casting numbers off my heads, 462624. So (being a junior member) I was wondering what the verdict on these heads were, good, bad, ect. I searched and bout all i saw were that they were prone to cracking, and that the last year they were made was 87 so im assuming they were original to the engine. (came outta a 87-89 c10)

 

?

 

They're old truck heads.

Now, you want good truck heads, look into '96-'99 Vortec heads. . .

 

lol yeah the last thing i read about'em after searching here was you saying they were old 70's smoggers or somethin like that.

 

Its true. They are thin castings, so they warp and crack easily. They are low compression heads (large chambers) with mediocre-at-best port flow compared to other stock heads. The chamber design, like the 882, is also somewhat prone to detonation problems.

They are a very poor choice for a performance car, even only a mild performance car. Vortecs, or some TPI heads, would be a much better choice.

 

like vortec 906?