Your shopping cart is empty.
Chevy / GM Engines
Popular LS-based long blocks with OEM-grade machining, tight QC, and break-in guidance that keeps them running cool and clean.
0
STILL DECIDING? WE CAN HELP 800-708-0087
STILL DECIDING? WE CAN HELP 800-708-0087
ITS SATURDAY! WE ARE OPEN — CALL NOW 800-708-0087
Engines • Gas
Quality by Design. Monster by Nature.
293 verified reviews
MonsterCare Coverage — up to 6 years
Ford Engines
Ford modular coverage with the right materials and machine work to match OE specs and real-world use.
Dodge Engines
From minivan duty to HEMI grunt—spec’d for longevity, clean oiling, and consistent compression.
How We Build for Reliability
Clean machine work, proper surface finishes, tight clearances, and verified oil control. Each engine is spec’d for intended use, from daily duty to towing.
Break-In & Oil
Follow the included break-in procedure. Use the recommended oil, prime the system, verify pressure, and re-torque where required.
Why Monster Over Big-Box Remans?
We focus on real-world durability—QC on every long block, clear documentation, and techs who speak build sheets, not just part numbers.
What’s included?
See each product page for exact configuration (long block vs. dressed). Every unit is fully remanufactured with machining, inspection, and new wear components as specified.
Is tuning or programming required?
Most gas remans drop in without custom tuning. Always clear codes, perform relearns, and verify fuel/ignition health.
How long is the warranty?
Coverage is model-specific with MonsterCare options up to 6 years. Keep install docs, use correct fluids, and follow the break-in sheet to stay covered.
Core return?
Most engines carry a refundable core. You’ll receive return instructions; credit is issued after inspection.
