COMP Cams · New
COMP Cams Ford Small Block Camshaft FS XE258 HR10
MPN 31-491-9 · Store SKU cca31-491-9
Supplier stock checked 11/7/2026, 5:03:58 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
The COMP Cams Xtreme Energy camshaft delivers enhanced street performance for Ford Small Block engines, producing very strong torque and horsepower gains with a smooth idle and responsive throttle—ideal for mild performance upgrades and heavy vehicle applications. Engineered for excellent low- to mid-range power, it performs best with proven combinations such as the Edelbrock Performer intake manifold and a TCI Street Rodder or stock torque converter. Featuring full-size base circles, this camshaft works seamlessly with COMP Cams Evolution hydraulic roller tappets and eliminates the need for dog bones and lifter retainers—components never intended for pre-1985 applications. This camshaft supersedes part number 31-412-8, offering a dependable upgrade designed for improved drivability and consistent performance. The COMP Cams Xtreme Energy series delivers enhanced street performance, offering strong midrange torque and horsepower gains with smooth idle and responsive throttle—ideal for mild performance upgrades. Xtreme Energy 206/212 Hydraulic Roller, Ford 221-302
Manufacturer fitment & guides
Check 31-491-9 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
