Hex Head Black Oxide Intake Manifold Bolts for Buick 215 cid, uses 3/8˝ socket

Hex Head Black Oxide Intake Manifold Bolts for Buick 215 cid, uses 3/8˝ socketPrevent intake manifold leaks with ARPs quality fasteners. Theyre nominally rated at 180,000 psi and precision machined for optimum thread engagement. Wide underhead flange and companion washers provide even load distribution. Precision rolled threads prevent galling while promoting more consistent torque loading. Facilitates optimum sealing of gasket surfaces. Available in choice of black oxide finish chrome moly or corrosion resistant stainless

These ultra heavy-duty rod bolts are made from a special material designated ARP2000

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

This procedureinvolves about ten very slight cuts and results in an exceptionallystraight part

wide area washer and an extra tall 12-point head that accepts a deep socket and eliminates the worry ofstripping the head

Higher Performance Series: Made of 8740 chrome moly forgings and heat-treated to180

Pro Series main bolts are application-specific

making it ideal for the pplication

all ARP main bolts feature a reduced renching head

It has approximately 200% the fatigue life of 8740 chrome moly steel and has a tensile strength of 220

000 psi for the ARP2000® material

Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place

When the bolt hasstretched the specified amount