Requires use of LS3 dipstick (GM P/N 12634547) and tube (GM P/N 12625031); Engine location may need to be adjusted (up / down or fore / aft) for cross member or steering linkage clearance depending on the vehicle, steering configuration and chassis type.
Each cover has 1 1/4" baffled breather hole per cover
Package includes: 2 x engine valve cover, 8 x bolts(such as main picture shows).
Fitment:fits for 1958-1986 Small Block SBC for Chevy 283 302 305 327 350 383 400 Engine blocks