Raceworks LS7 fuel rail raceworks Sale! from 15900 16900 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Raceworks LS7 Fuel rail Mounting hardware as pictured. Rails have - AN-8 O-Ring ports on ends and in centres. - Included fittings are AN-8 Plugs x2. Rail accepts Short or 3/4 injectors with 14mm Top O-rings.