The BTR-86481 four-pole cam gear is engineered for GM Gen IV LS engines equipped with four-pole (4X) camshaft reluctors, especially in setups converting from 1-bolt to 3-bolt camshafts (e.g., LS2/LS3). It supports precise cam position sensing and solid timing integrity for performance applications.

Brian Tooley Racing BTR-86481 Includes:

• One steel 3-bolt four-pole camshaft gear (sold individually)

Brian Tooley Racing BTR-86481 Features:

• Four-pole (4X) design matches GM camshaft control systems on LS2/LS3 platforms. :contentReference[oaicite:3]{index=3}
• 3-bolt mounting allows conversion from single-bolt cams, supporting modern camshaft upgrades. :contentReference[oaicite:4]{index=4}
• Steel gear construction for durability under performance loads. :contentReference[oaicite:5]{index=5}
• Direct replacement for GM part number 12586481 in compatible LS engines. :contentReference[oaicite:6]{index=6}

Brian Tooley Racing BTR-86481 Notes:

• Sold individually; match quantity to number of camshafts being serviced.
• When used in conversions, verify that the camshaft and front timing cover match the four-pole reluctor specification.