GM 12586481 OEM 3 Bolt 4X Timing Camshaft Cam Gear for 58X Reluctor CranksThis GM cam gear is used in late model combos that are being swapped from the single bolt cam to the older three bolt cam design. This gear mounts to the camshaft via 3 three bolts and has the 4X reluctor (4 raised portions for cam position sensor to read).

-16 rocker arm trunnions- LS-type retrofit

The Magic Stick line of camshafts is the most popular line of camshafts Texas Speed offers

Update your obsolete spray-bar type nitrous system with one of our Square Flange Perimeter Plate Conversion Kits

our BBK facilities have grown as fast as our product lines with nearly 200

Boot-up Speeds

-Full gasket set with molded rubber valve cover and one piece oil pan gasket

Notes: Designed to fit large journal crankshafts

This rebuild kit will include: Full Gasket Set

680" Bore 81-82   3 Pc

Very Rough Idle

Optional Melling Oil Pump

and even the speed of the functions as well