Monster Big Bore Kit (124in.), Bore 4-3/8in. 11.21 Compression RP201-130W

  
Revolution Performance Monster Big Bore Kit 124in. 11.2:1 Compression - Granite. Bolt-on big bore kits are exactly that, a bolt-on application for your engine. No case boring or additional modifications/upgrades needed. However, additional modifications/upgrades will help make this bolt-on big bore kit a complete package. Monster big bore kits require modifications/upgrades to your engine that include: case boring, crankshaft balancing and CNC cylinder head upgrades. We must be notified within 24 hours of receipt of any missing, defective or damaged goods. Any item which has been used, worn, damaged or had tags/labels removed will not be eligible for return. Any damage claims may be exchanged for the identical item only.