COMP Cams · New
COMP Cams Nitrided Camshaft CB XS282 S
MPN 11-678-20 · Store SKU cca11-678-20
Supplier stock checked 11/7/2026, 5:17:39 AM 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
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts, the Xtreme Energy grind family offers gains in torque and horsepower while still delivering adequate vacuum for power brakes and other vacuum dependent accessories. Xtreme Energy camshafts work great in carbureted applications, but offer the best performance with aftermarket intake manifolds, lower gear ratios, headers and free flowing exhaust. Street/strip, 3000+ stall, likes headers and gears, rough idle. Nitrided. Xtreme Energy NIT 244/252 Solid Flat Cam for Chevrolet Big Block 396-454
Manufacturer fitment & guides
- Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
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
