I am in the process of building my first engine and could use some help on cam selection.
Build specs:
1969 Dart
1989 factory hydraulic roller LA 360
Speed pro 4.03" pistons (H116CP 30) - zero decked
Summit CP calculator shows ~ 9.5:1 CR
308 heads with stock valves (1.6 & 1.88)
Edelbrock performer intake
Dougs headers
650CFM holley (willing to upgrade)
8.25 rear end with 3.23 gears (willing to change)
904 Trans w/ 2500 stall
This is car is for meant for ripping around town on the weekends, not a daily driver and not for the strip.
Im now looking at cams and am considering the Comp XR280HR-10 but have a few questions about this cam:
- This cam is listed as a "Retro-fit Hydraulic Roller" however I would be using this is a factory roller block with factory roller lifters. Will this cam drop into my application or do I need to be looking at a different style of camshaft?
- The lift on the XR280HR is advertised as .541/.537 but from what I have read that is more than the stock 308 heads can handle. Can this amount of lift be achieved on the 308 heads easily with some head work? If so what will need to be done to the heads?
- I know I will need new valve springs with the upgraded cam but will I be required to upgrade rocker arms or are the stock ones fine for my application?
- If I am way off on this cam please feel free to suggest something else!
I appreciate any input you guys have!
Thanks a lot!