ARP 190-3609 High Performance Cylinder Head Bolt Kit for Pontiac 400-455 with Edelbrock D-Port Heads

The ARP 190-3609 is a high-performance cylinder head bolt kit specifically engineered for Pontiac 400 and 455 cubic inch engines equipped with Edelbrock D-Port and Performer cylinder heads (models 61579, 61599, and #8561). This complete kit provides superior clamping force and reliability for both street and performance applications.

Key Features:

• 180,000 PSI tensile strength - 15% stronger than Grade 8 fasteners for exceptional strength and reliability
• Reduced wrenching hex head design - Eliminates the need for valve train removal when re-torqueing cylinder heads
• Premium chromoly steel construction - Black oxide finish for corrosion resistance
• Hardened parallel-ground washers included - Ensures proper load distribution and prevents galling
• Two different bolt lengths included - Complete kit for proper installation on Edelbrock D-Port heads

ARP's High Performance Series head bolts are manufactured from premium aerospace-grade chromoly steel and heat-treated for maximum strength. The reduced hex head design is particularly beneficial for street-driven vehicles where engine compartment clearance may be limited, allowing cylinder head removal and installation with the engine in the car. Each kit includes ARP's ultra-torque assembly lubricant to ensure accurate torque values and proper fastener performance.

This kit is ideal for engine rebuilds, performance upgrades, and racing applications where reliable head gasket sealing is critical. Compatible with Pontiac 400 and 455 engines from 1967-1979 when using Edelbrock D-Port aftermarket cylinder heads.