turbodave231
Moderator
- Joined
- May 24, 2001
- Messages
- 2,287
I gathered this info for the stock 1987 Buick 3.8 LC2 VIN 7 engine. Can we make this a sticky please?
Valve Specifications:
Stem diameter Intake 0.3401-.0.3412
Stem diameter Exhaust 0.3405-0.3412
Valve Installed Height 1.960-2.000
Face Angle 45 degrees
Margin 0.025
Valve Spring
Valve Spring Free Length 2.030
Valve Spring installed height 1.710
Out of Square limit 0.062
Valve Stem to Guide Clearance
Intake .0015-.0035
Exhaust .0015-.0032
Valve Guide inside diameter 0.3437
Valve Arrangement Front to Rear
Right E-I-I-E-I-E
Left E-I-E-I-I-E
Valve Seat
Width
Intake 0.062
Exhaust 0.075-.104
Seat Angle
Intake 46 degrees
Exhaust 46 degrees
Allowable Run Out 0.002
Valve Specifications:
Stem diameter Intake 0.3401-.0.3412
Stem diameter Exhaust 0.3405-0.3412
Valve Installed Height 1.960-2.000
Face Angle 45 degrees
Margin 0.025
Valve Spring
Valve Spring Free Length 2.030
Valve Spring installed height 1.710
Out of Square limit 0.062
Valve Stem to Guide Clearance
Intake .0015-.0035
Exhaust .0015-.0032
Valve Guide inside diameter 0.3437
Valve Arrangement Front to Rear
Right E-I-I-E-I-E
Left E-I-E-I-I-E
Valve Seat
Width
Intake 0.062
Exhaust 0.075-.104
Seat Angle
Intake 46 degrees
Exhaust 46 degrees
Allowable Run Out 0.002