Valve Cover Bolt Kit Merlin Block, Brodix Head SB 1/4-20 thread, 4.000in UHL, Black Oxide Hex Head

Valve Cover Bolt Kit Merlin Block, Brodix Head SB 1/4-20 thread, 4.000in UHL, Black Oxide Hex HeadTo ensure proper sealing of valve covers, ARP manufactures a variety of special application specific bolt and stud kits. Many professional engine builders prefer to use studs because of their ability to properly position the gasket and guide the cover into position. ARP offers studs and bolts in a choice of chrome moly steel with a black oxide finish or polished ARP Stainless. You have a choice between conventional hex head bolts and nuts or compact,

The nuts feature a wide base for better load distribution and sealing

The threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating

including the elimination of main cap walk and fretting

We recommend you maintain a chart of all rodbolts

they are the best on the market today

Now available for all popular applications

Pro Series main bolts are application-specific

000 psi water pulley kits

Far superior to any other main bolts available for use in competition engines

Simply stated

or if there is deformation

Features extra heavy springs for consistent repetition