- Joined
- Aug 29, 2010
- Posts
- 47,132
- Reaction score
- 9,329
- Location
- OKC, OK
- First Name
- HotRod
- Truck Year
- 85 K20 LWB
- Truck Model
- Silverado
- Engine Size
- 454 - Turbo 400 - 3.73
I did have to check on those rules. It appears 305 would have been the max cu in. The actual max was based on CC measurements, so 5000cc max or 5.0 Litre. 302 and 305 both fall into the 5.0 Litre.