421" LS SHORT BLOCK - FULL FORGED

Our short blocks are the perfect upgrade from your tired, stock short block.  The full-forged short blocks give you the potential to up your power limits without sacrificing durability.  These are a great option for power adder or N/A engines.  

FASTTIMES LS SHORT BLOCKS

• SEASONED 6.0L GEN III OR GEN IV BLOCK
• FORGED 4340 STEEL 4.125" STROKE CRANKSHAFT
• FORGED 4340 STEEL 6.125 H-BEAM CONNECTING RODS
• 2618 CP BULLET FORGED ALUMINUM PISTONS
• CP BULLET STEEL TOP RING SET
• P1 MAIN STUD KIT
• NEW BLOCK PLUG KIT
• ONE-PIECE CAM BEARINGS
• RACE MAIN AND ROD BEARINGS

• BLOCKS LINE HONED, CNC SURFACED, CNC BORED & HONED W/ DIAMONDS 
• CRANKS COMPUTER BALANCED, MICRO POLISHED, WELDED RELUCTOR
• RODS HONED, BIG & SMALL END
• PISTONS HONED 
• RINGS GAPPED FOR APPLICATION
• PROFESSIONALLY ASSEMBLED 

SEASONED PRODUCTION BLOCKS AND CRANKS MAY HAVE COSMETIC BLEMISHES THAT WILL HAVE ABSOLUTELY NO AFFECT ON DURABILITY OR LONGEVITY.  THIS MAY INCLUDE DINGS, DENTS, SCRATCHES OR GOUGES IN NON-CRITICAL LOCATIONS.