LS Series Chevy GM Casting Cathedral port High Ratio

LS Series cylinder head

Designed for the stock production GM casting Cathedral port head. This set was designed to have a “Dropped Tail ” to help with pushrod clearance and valve cover clearance. This set will work with stock valve cover’s

SKU: 20043 Categories: , , , Tags: , ,

20043

Cylinder Heads

+ 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

+ 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:
+ Shotpeening:
+ Std or Lightweight:
+ Needle Bearing Tips:
+ Accessories: 
+ Spare Rockers: Quantity needed.