12-Pt Head Stainless Intake Manifold Bolts for Chevrolet 305-350 Vortec, fits most aftermarket alum.

12-Pt Head Stainless Intake Manifold Bolts for Chevrolet 305-350 Vortec, fits most aftermarket alum.Prevent 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

they should never be re-used

The smart way to attach a float bowl is with ARP’s special

quench and temper steels – L19 requires special care to avoid hydrogen embrittlement

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

All 8740 chrome moly steel nuts are black oxide finished and all ARP Stainless nuts are polished to a briliant luster

square drive forged into bolt head

Increased material strength overcomes valve train harmonics and stress

and monitor overall length during installation

These features combine to enable ARP shafts to handle the added torque requirements of increased capacity oil pumps or heavy viscosity lubricants

low-profile design

super-alloy field

000 psi for the ARP2000® material