Chevy SBC 350 Billet Aluminum Timing Pointer for 6 3/4" Balancer All rockers feature large needle

All rockers feature large needle bearings and roller tips

For 3" tube diameters

The Speedmaster water pump pulley shim kits contain one 1mm spacer

Compatible with Gas

Kits include: Fully assembled aluminum cylinder heads

Chevy SBC 350 Billet Aluminum Timing Pointer for 6 3/4" Balancer All rockers feature large needleGet up to four degrees of timing adjustment with Speedmaster adjustable timing pointers. They're precision machined from T6 106 billet aluminum, and are designed for a minimum of clearance between the pointer and damper, so parallax errors reading the timing marks are virtually eliminated. Mounting hardware is included.