LS Gen III 4.8/5.3/5.7/6.0 Valve Springs 1997-2007 GM

GM valve spring kit for the LS Gen III 4.8/5.3/5.7/6.0 (1997-2007). Listed for one application: LS Gen III 4.8/5.3/5.7/6.0 engines, 1997-2007, in Chevrolet, GMC, Pontiac, Cadillac applications. Confirm your engine code and year against this listing before ordering.

What it does

Valve springs close the valve and keep the lifter on the lobe. Tired springs float valves at high rpm and break under aggressive cams. A matched spring kit with the right installed height, seat pressure and retainers is required for any cam swap and cures high-rpm misfire on a high-mileage engine.

Fits

• Chevrolet vehicles with the LS Gen III 4.8/5.3/5.7/6.0 engine, 1997-2007
• GMC vehicles with the LS Gen III 4.8/5.3/5.7/6.0 engine, 1997-2007
• Pontiac vehicles with the LS Gen III 4.8/5.3/5.7/6.0 engine, 1997-2007
• Cadillac vehicles with the LS Gen III 4.8/5.3/5.7/6.0 engine, 1997-2007

Fixes

• valve float or misfire at high rpm
• a broken spring (the cylinder goes dead instantly)
• any camshaft upgrade

What's included

• a full engine set of springs
• retainers, locks and seats where the kit lists them

Specifications

• Brand: GM
• Shipping weight: 3.5 lb
• Condition: new
• Product type: Valve Springs

Free shipping on orders of $70 or more; everything else ships with calculated shipping at the part's real weight. Questions on fitment? Ask a tech before you buy.