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Byron Howell photo
France, Paris
1 Level
745 Review
49 Karma

Review on Cams 4603 16 Magnum Polylock Studs by Byron Howell

Revainrating 5 out of 5

high performance camera? You need these!

Locking Nuts for 1964 389 with 7/16 Threads in Studs (Pontiac used 1964 421 SD sockets) Each working cam requires one adjustable valve train, These locknuts are much better than standard polymer locknuts

Pros
  • Package Dimensions: 9.5 L x 1.5 H x 5.75 W (inches)
Cons
  • Definitely Bad Product