lt4 rockers
#3
TRUE LT4 rockers are for a metric stud.
The LT4 springs are about right for a stock cam with 1.6 rockers despite whatever GM and the young and inexperianced here will tell you they are NOT enough for the HOT cam. after a fairly short time they will lose pressure and become insufficient for the HOT. The LT4 used lighter valves than the LT1 which is a piece of why GM got away with such a weak spring.
The LT4 springs are about right for a stock cam with 1.6 rockers despite whatever GM and the young and inexperianced here will tell you they are NOT enough for the HOT cam. after a fairly short time they will lose pressure and become insufficient for the HOT. The LT4 used lighter valves than the LT1 which is a piece of why GM got away with such a weak spring.
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