Elgin EHC-131S Head Bolt Set Fits Early 2004-2015 GM 4.8L 5.3L & 5.7L LS Engines

Elgin EHC-131S LS Engine Head Bolt Set

Hex Head Alloy Steel

These are a 2nd design bolt 2005-2020 they will have two lengths, The first design had three length and ran up to 2004 Verify the bolts you need.


Model Years: 2005-2020 (fits some 2004 engines that used the second design style bolts)

Make: Chevrolet, GM (2nd Make)

Engine: 4.8L, 5.3L and 5.7L LS Series Engines

Fastener Style: Bolt

Bolt Thread Size: 11mm x 2.0 & 8mm x 1.25

Head Style: Hex Head 15mm & 10mm

Under Head Length: 45mm & 100mm 

Material: Alloy Steel

Does not include washers

Tensile Strength: 190,000 PSI

Undercut: No