FASTTIMES LS/F 1250HP SHORT BLOCK - 364-388

FASTTIMES LS/F 1250HP SHORT BLOCK

• DART SHP LSNEXT CAST IRON BLOCK
• DART SHP LSNEXT BLOCK KIT (DOWELS, FREEZE PLUGS, CAM BEARINGS)
• GM NODULAR CRANKSHAFT
• FORGED 4340 STEEL H-BEAM CONNECTING RODS W/ARP 2000 BOLTS
• FORGED 2618 PISTONS
• GAS NITRIDED STEEL TOP PISTON RING SET
• STREET SERIES MAIN & ROD BEARINGS

FASTTIMES LS PERFORMANCE AFTERMARKET SHORT BLOCKS ARE BUILT WITH THE SAME CRAFTSMANSHIP AND QUALITY AS OUR RACE ENGINES. UNLIKE SOME OTHER SHOPS, WE MACHINE, BALANCE, AND ASSEMBLE OUR ENGINES 100% IN-HOUSE.  THIS GIVES US 100% CONTROL OVER THE WORK THAT IS PERFORMED TO EACH COMPONENT. 

THEY FEATURE A DART LSNEXT SHP CAST IRON BLOCK.  EVERY BLOCK GOES THROUGH A DEBURRING PROCESS THAT CHAMFERS CRITICAL EDGES AND HOLES TO PREP FOR MACHINING.  THEY ARE THEN ALIGN HONED TO ENSURE THE MAIN HOUSING BORES ARE THE SAME SIZE IN SPEC AND IN LINE.  AFTER LINE HONING THE BLOCK IS MACHINED TO ENSURE THE DECK SURFACES ARE PARALLEL TO THE MAINS TO A NOMINAL DECK HEIGHT.  NEXT THE BLOCK IS BORED (WHEN REQUIRED) AND THEN FINISH HONED TO 4.125".  THE LIFTER BORES ARE CHECKED AND HONED TO SIZE AS NEEDED. AFTER FINISH MACHINING THE BLOCK THEN GOES THROUGH A FINAL PREP PROCESS THAT INCLUDES ANY EXTRA CHAMFERING OR DEBURRING THAT MAY BE REQUIRED BEFORE FINAL CLEANING.

THESE SHORT BLOCKS COME WITH A GM NODULAR CRANKSHAFT, CONNECTING RODS, AND PISTONS.  ALL CRANKSHAFTS ARE SPIN BALANCED ON OUR SUNNEN BALANCER THEN MICRO-POLISHED FOR A PERFECT FINISH.  EACH CONNECTING ROD IS CHECKED FOR HOUSING BORE ROUNDNESS, TAPER AND SIZE.  ANY ROD THAT DOES NOT MEET THE HOUSING BORE SPEC IS MACHINED TO SIZE AND ROUNDNESS.  PIN BORES IN THE RODS AND PISTONS ARE HONED TO SIZE FOR PROPER OIL CLEARANCE FOR THE APPLICATION.  

ALL COMPONENTS GO THROUGH HAND FINISHING AND A MULTI-STEP CLEANING PROCESS TO ENSURE THE BLOCK AND ROTATING ASSEMBLY ARE FREE OF CONTAMINANTS BEFORE ASSEMBLY.  

EVERY ENGINE IS ASSEMBLED WITH HIGH QUALITY OIL AND ASSEMBLY LUBRICANTS THAT WE HAVE TRUSTED FOR OVER 30 YEARS.

* * * * * IMPORTANT - PLEASE READ * * * * *

DUE TO THE VOLATILITY OF OUR MARKET WE WILL DO OUR BEST TO ACCOMODATE YOUR REQUEST FOR DESIRED BRANDS.  WE CANNOT GUARANTEE THAT YOUR REQUEST WILL BE MET AND FINISH YOUR PROJECT IN A TIMELY FASHION DUE TO THE MARKET CONDITIONS.  WE RESERVE THE RIGHT TO SUBSTITUTE BRANDS OF EQUAL QUALITY AT OUR DISCRETION WITHOUT NOTICE.