.625" Lift Beehive Valve Springs (16pcs) For GM LS Engines – LQ4, LQ9, LS1, LS2, LS3, 4.8, 5.3, 6.0, 6.2L

If you're building or upgrading a Gen III or IV GM LS engine, these valve springs are a solid choice.

This set includes 16 brand-new, direct-replacement beehive-style single valve springs.

They're designed for a .625-inch max valve lift and fit a range of engines like the LQ4, LQ9, LS1, LS2, LS3, and the 4.8, 5.3, 6.0, and 6.2L variants.

Here are the specs you care about: installed height is 1.800 inches with 135 lbs of load.

At open height (1.175 inches), they handle 348 lbs.

The spring rate is 340 lbs/in, and coil bind max is 1.100 inches.

The outer diameter at the large end is 1.307 inches, and the small end is 1.055 inches.

They're made from steel and come with a 1-year warranty.

Part number is PAC-1218-16.