Wedge-Locking Header Bolts Hex Head M8 X 1.18 1 Inch Chevy LS Nickel Plt 12 Pcs Proform Ignition Coil Wiring Harness Repair Kit these are the scale ramps

these are the scale ramps to have

Heavy-Duty Model Equipped With Roller Thrust Bearings

531 Inch Size Seals

Each pump is made from durable but light-weight die-cast aluminum with epoxy powder coating for corrosion resistance

High-Compression Racing Style With Inline Mount

Wedge-Locking Header Bolts Hex Head M8 X 1.18 1 Inch Chevy LS Nickel Plt 12 Pcs Proform Ignition Coil Wiring Harness Repair Kit these are the scale rampsEach PROFORM Grade 8 Header Bolt is permanently assembled with a pair of special washers. When the bolt is torqued to 28+ ft lbs, the washers super hardened external teeth bite into and grip the bottom of the bolt head and the top surface of the header. After being self locked in this manner, any bolt loosening rotation is blocked by a wedge locking action created by the washers interfacing, matching cams. Its an uphill climb: vibration that might