Big Block Chrysler 426 Hemi Iron Head
This 8300 set is specifically designed for the Big Block Mopar Iron 426 Hemi head. This rocker is offered Exclusively thru Ray Barton Racing
T&D always recommends measuring for the amount of offset required for your combination
+ Cylinder Head Mfg / Part #: Head type (aftermarket vs OEM). Part #s are often stamped in front / rear of castings.
+ Valve Length: Measured as overall length or + overlenth from OEM dimensions
+ Spring Diameter: Diameter or Mfg part #.
+ Pushrod Diameter: Width measured in thousandths.
+ Lash Caps: If installed on tip of valve stem – yes or no.
+ Rocker Ratios: Intake & Exhaust
+ Head Porting Information: If yes, please include provider name / company to determine alteration of valve spacing.
+ Block Type / Brand: Mfg / Part # (aftermarket vs OEM).
+ Cam Location: Standard or raised on aftermarket blocks for crankshaft clearance.
+ Deck Height: Standard or raised of aftermarket blocks for large displacement applications
+ Cam Type: Hydraulic, Roller or Hydraulic Roller
+ Lobe or Valve Lift: Lobe if rocker ratio is unknown.
+ Lifter Offset: Standard or Offset (Intake and / or Exhaust)
+ Lifter Height: Standard or Tall
+ Spring Oil Hole:
+ Std or Lightweight:
+ Needle Bearing Tips:
+ Spare Rockers: Quantity needed.