COMP Cams · New
COMP Cams Camshaft Kit CB XM278H-12
MPN K11-240-4 · Store SKU ccaK11-240-4
$712.95
CHECK AVAILABILITY0 in supplier warehouses. Ask JuiceBuilt about availability.
Supplier stock checked 11/7/2026, 1:59:46 PM UTC. Adding a part does not reserve it.
30-day returns for unopened, unused new parts
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
K-KIT - Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), Decals and Instructions. Xtreme Marine 234/244 Hydraulic Flat Cam K-Kit for Chevrolet Big Block 396-454 Jet w/ A impeller, needs improved intake, likes headers.
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
