|
|
Item Posts
Sort Order
|
|
|
Small block chevy vortec heads
|
|
Posted: 11/19/08
04:52 AM
|
|
Can someone tell me how big of a cam I can run with a set of vortec heads with the small springs? Can I run a comp cams extreme 4x4 cam with .488-.498 lift without worrying about breaking springs? Any help or suggestions would be appreciated.
|
|
|
|
|
Posted: 11/19/08
05:51 AM
|
|
I think the stock springs are only good to .450 lift but as with any cam you should always buy maching valve springs.
Professional hi-performance engine builder
Horsepower sells Engines and torque wins races.
|
|
|
|
|
Posted: 11/20/08
06:29 AM
|
|
The stock springs shouldn't be used with an an aftermarket cam. They've got too soft a spring rate and not enough travel.
Swap to a set of Comp 941 springs and matching retainers and locks, they fit the stock spring pocket and have the right rate and travel for that cam. If you're still running a flat tappet, you'll want to have 105 pounds seat pressure, if you've got a roller cam, go with 115-120 on the seat.
|
|
|
|
|
|
|
|
|