Edelbrock Sure Seat Dual Spring / Damper Valve Spring - 1.170 in Coil Bind - 1.540 in OD - Edelbrock Victor JR. - Small Block Chevy - Set of 16 931171 The distributors come with either

The distributors come with either billet or new casting housings / centerless ground shafts / and caps and balanced GT SERIES DIRECTIONAL VANE ROTOR -s with brass contacts

2-1/2" inside diameter

Full control of fluid flow

head gaskets and bolts along with an LS3 valley cover

but features relocated fuel injector bosses for improved flow and added nitrous bosses along the near vertical runners

Edelbrock Sure Seat Dual Spring / Damper Valve Spring - 1.170 in Coil Bind - 1.540 in OD - Edelbrock Victor JR. - Small Block Chevy - Set of 16 931171 The distributors come with eitherMade of highest quality spring wire and precision wound to close tolerances, our Sure Seat Valve Spring sets are for use on original equipment heads when installing Edelbrock Performer Plus, Performer RPM and Torker Plus camshafts. These are the same high performance springs used on Edelbrock Performer and RPM cylinder heads. The #5900 Series valve springs are designed for use with OEM valve rotators. Valve Spring Kits are complete kits that contain