LD340 and NHRA

[Jadaharabi]

I'd bet "308" would be the choice, if you could find a un cracked set

I have 2 sets of 308 heads. Only ones I've had and they are not cracked.

How many have actually had cracked 308 heads?

 

[crackedback]

I've never had a pair off a tear down engine where are least one of the 308's weren't cracked. YMMV

 

[LowDeck451]

I have 2 sets of 308 heads. Only ones I've had and they are not cracked.

How many have actually had cracked 308 heads?

I had a set of 308's mag'd last year. 3 or 4 cracks in each head. One of the cracks went about an inch down into the exhaust port throat.

 

[Abodybomber]

I had a set of 308's mag'd last year. 3 or 4 cracks in each head. One of the cracks went about an inch down into the exhaust port throat.

Ouch.. ..