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I just recieved my new springs from Summit but had a concern. Ben mentioned that the most spring pressure that the stock 3500 lifers could take is in the low 300's
here is the set i bought...
26918-12 "Hi-Performance GM V6 valve springs"
26918 -Single Beehive Ovate
O.D.: 1.055/1.290
I.D.: 0.650/0.885
Seat Load: 130@ 1.800
Open Load: 333 @ 1.150
Coil Bind: 1.140
Rate(lbs./in.): 313
"Designed for LS1, LS2 and LS6 engines when a performance cam is used. This spring, when combined with the appropriate titanium retainer, will outperform almost every spring package in the Gen III engine. This spring is designed for a maximum of .600" lift at the valve, so it is the most ideal spring for most street and mild race applications."
Anyone have any expierance with them? I'm assuming they're for the L67..
On the box it has different specs though,
Batch Number 049045
Seat Load 130 lbs @ 1.8
Open Load 318 lbs @ 1.2
Coil Bind 1.14
here is the set i bought...
26918-12 "Hi-Performance GM V6 valve springs"
26918 -Single Beehive Ovate
O.D.: 1.055/1.290
I.D.: 0.650/0.885
Seat Load: 130@ 1.800
Open Load: 333 @ 1.150
Coil Bind: 1.140
Rate(lbs./in.): 313
"Designed for LS1, LS2 and LS6 engines when a performance cam is used. This spring, when combined with the appropriate titanium retainer, will outperform almost every spring package in the Gen III engine. This spring is designed for a maximum of .600" lift at the valve, so it is the most ideal spring for most street and mild race applications."
Anyone have any expierance with them? I'm assuming they're for the L67..
On the box it has different specs though,
Batch Number 049045
Seat Load 130 lbs @ 1.8
Open Load 318 lbs @ 1.2
Coil Bind 1.14