Spring Pressures for ZZ4 cam ??
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
These are the specs for the springs used on ZZ4 engines:
Force @ 1.700": 110 lbs
Force @ 1.250": 310 lbs
Coil bind: 1.160"
Max recommended lift @ valve: 0.510"
Those are the springs I used (I originally intended to use a ZZ4 cam - another story). Information from Competition Products, from whom I ordered the springs.
Force @ 1.700": 110 lbs
Force @ 1.250": 310 lbs
Coil bind: 1.160"
Max recommended lift @ valve: 0.510"
Those are the springs I used (I originally intended to use a ZZ4 cam - another story). Information from Competition Products, from whom I ordered the springs.
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