hirschdalechevy
Full Access Member
- Joined
- Mar 8, 2011
- Posts
- 726
- Reaction score
- 517
- Location
- norcal
- First Name
- rich
- Truck Year
- 1977
- Truck Model
- k-30
- Engine Size
- 454
Thanks that's the kind of information I'm looking for. 063 215 290 are the last 3 digits in casting numbers correct?
That crew cab is freekin awesome by the way!
Thanks , and yes on the last three , my heads are , (two sets) , #3964290. My crew cab heads have major porting and bigger valve's and a bigger cam , better valve terrain as to run out a bit better , also port matched intake.