sti head measurments, lobes, springs etc
#2
Scooby Regular
iTrader: (1)
Im sure i have posted this up before, but if you cant find it in "Search" :
STi Version 3~4 valvetrain
Head codes - LH-B + RH-B
Head Gasket Type - MLS
Valve codes - EH + IH
Shim Type - Inner/under bucket.
Spring colour code - white
Spring free length - 56mm
Cam Lobe Lift - L4IN/R4IN - approx. 8.50mm
Cam Lobe Lift - L4EX/R4EX - approx. 8.60mm
WRX Version 3~4 valvetrain
Head Codes - LH-B + RH-B
Head Gasket type - Composite
Valve Codes - IDN + EDN
Shim Type - Outer/over bucket
Spring colour code - orange
Spring free length - 48.20mm
Cam Lobe Lift - L4IN/R4IN - approx. 8.40mm
Cam Lobe Lift - L4EX/R4EX - approx. 8.55mm
Please note that the above data is not from a workshop manual but from actual heads i have measured in the past.
The actual measurements you get will depend on mileage/wear of the components.
Mick
STi Version 3~4 valvetrain
Head codes - LH-B + RH-B
Head Gasket Type - MLS
Valve codes - EH + IH
Shim Type - Inner/under bucket.
Spring colour code - white
Spring free length - 56mm
Cam Lobe Lift - L4IN/R4IN - approx. 8.50mm
Cam Lobe Lift - L4EX/R4EX - approx. 8.60mm
WRX Version 3~4 valvetrain
Head Codes - LH-B + RH-B
Head Gasket type - Composite
Valve Codes - IDN + EDN
Shim Type - Outer/over bucket
Spring colour code - orange
Spring free length - 48.20mm
Cam Lobe Lift - L4IN/R4IN - approx. 8.40mm
Cam Lobe Lift - L4EX/R4EX - approx. 8.55mm
Please note that the above data is not from a workshop manual but from actual heads i have measured in the past.
The actual measurements you get will depend on mileage/wear of the components.
Mick
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