THIS sale IS FOR A COMPLETELY REBUILT 4 BOLT MAIN 496 CUBIC INCH,576HP WOW!!!!! (MARK V AND MARK VI, 454 4 BOLT BLOCK WITH A1 PIECE REAR SEAL, 9.800 DECK). THESE BLOCKSCOME IN VEHICLES FROM 1990 TO 1998, WILL FIT IN FROM 1965 TO 1998.CHEVROLET STROKER ENGINE.OUR BLOCKS ARE MACHINED ON OUR BRAND NEW RMC V40 FULLY AUTOMATIC CNC MACHINE FOR THE TIGHTEST AND BEST FINISH PRODUCT HERE ON E BAY OR ANYWHERE!!! THE WORK PREFORMED TO THIS ENGINE IS AS FOLLOWS:
1. THIS BLOCK HAS BEEN OVEN CLEANED(HAS NO RUST OR SCALE), SHOT PEENED, MAGNAFLUXED AND PRESSURE TESTED.
2. THE BLOCK IS FRESHLY BORED AND TORQUE PLATE MOLY HONED TO .060 ALL BLOCKS ARE ALSO SONIC CHECKED TO ENSURE CONCENTRIC CYLINDER WALL THICKNESS AFTER BORING AND HONING.
3. THE BLOCK HAS BEEN LINE HONED, SQUARE DECKED, AND NEW CAM BEARINGS INSTALLED ALONG WITH NEW FREEZE PLUGS. ALL BOLT HOLES AND THREADS ARE FINE.
4. THIS ENGINE HAS A BRAND NEW SET OF LIGHTWEIGHT, FULLY CNC MACHINEDWISECO FORGED RACING PISTONS AND SPEED PRO PLASMA MOLY RINGS ( 5/64, 5/64, 3/16 OIL) THESE PISTONS YEILD A PUMP GAS FRIENDLY 10.25:1 COMPRESSION RATIO. WISECO IS AN INDUSTRY LEADER IN RACING FORGED PISTONS.
5. NEWKING H BEARINGS FOR RODS AND MAINS, ROD AND CAMSHAFT BEARINGS WERE INSTALLED. THE CAMSHAFT IS A NEW ELGIN INDUSTRIES E1143P AND WITH A TRUE CLOYES DOUBLE ROLLER CHAIN SET. THIS CAMSHAFT IS A ELGIN E1143P HYDRAULIC LIFTER GRIND .576 LIFT 246 DURATION @.050 ON BOTH THE INTAKE AND EXHAUST AND IT IS GROUND ON 108 DEGREE LOBE SEPERATION. THIS CAMSHAFT HAS A DISTINCT LOPY IDLE AND IS DESIGNED TO MAKE MAXIMUM POWER IN THE 2500 to 7000RPM RANGE. INSTALLED ALONG WITH THE CAMSHAFT IS A NEW SET OF ELGIN HYDRAULIC LIFTERS. A ELGIN E-1235P ROLLER CAM SET IS AVAILABLE ITS A 1100.00 UPGRADE( 1100.00 COMES WITH ROLLER CAM SPRINGS ROLLER CAM 3/8 MOLY PUSH RODS ROLLER CAM AND ROLLER LIFTERS) THIS 1100.00 UPGRADE IS A SMART UPGRADE, WILL NEVER HAVE A CAM GO FLAT, IF WANT ROLLER CAM SET UP BUY ENGINE WE WILL SEND YOU A SEPERATE INVOICE FOR THE UPGRADE.
6. RODS ARE BRAND NEW PRO-COMP ENTERPRISES FORGED STEEL H BEAM CAP SCREW WITH 7/16 BOLTS AND FULL FLOATING WRIST PINS. THE RODS ARE 6.385 (STOCK ROD LENGTH IS 6.135) THESE RODS ARE .250 LONGER THAN STOCK. THE INCREASE IN ROD LENGTH PRODUCES LESS SIDE LOAD ON THE PISTON WHICH RESULTS IN LESS FRICTION AND GREATER HORSEPOWER AND TORQUE THROUGHOUT THE RPM RANGE.
7. THE CRANKSHAFT IS BRAND NEW AIRCRAFT QUALITY PRO-COMP CAST STEEL 4.2501 PIECE REAL SEAL CRANKSHAFT.THE CRANKSHAFT IS SHOT PEENED FOR STRESS RELIEVING AND HAS A FULL .125 RADIUS ON THE MAINS AND ROD JOURNALS!, THIS CRANKSHAFT IS ALSO INTERNALLY BALANCED AND IS THE BEST OF THE BEST!!(4.250 STROKE, 1/4 INCH LONGER THEN STOCK 454), FRESHLY MICRO POLISHED AND STANDARD ON THE ROD AND MAIN JOURNALS. USE NON WEIGHTED BALANCER AND NON WEIGHTED FLWHEEL.
8. THIS ENGINE IS FULLY BALANCED ON OUR NEW RMC COMPUTER BALANCER AND IT IS ALSO BLUEPRINTED. PISTONS, RODS AND CRANKSHAFT ARE BALANCED TO LESS THEN 1 GRAM. ( MOST MACHINE SHOPS ONLY BALANCE TO A 5 GRAM SPREAD) BEARING CLEARANCES WERE SET AT .002 ON BOTH THE MAINS AND RODS.
9. THE CYLINDER HEADS ARE NEW PRO-COMP ALUMINUM RECTANGLE PORT WITH D PORT EXAUST PORTS(STOCK HEADERS AND EXHAUST MANIFOLDS WORK FINE PORTS ARE IN STOCK LOCATIONS PLUS ALL STOCK BRACKETS LINE UP). HEADS HAVE BEEN ASSEMBLED WITH NEW 1 PIECE STAINLESS STEEL SWIRL POLISHEDSEVERE DUTY QUAL CASTVALVES (2.25 X 1.88). THESE VALVES ARE 11/32 STEM AND .250 LONGER THEN STOCK, A NEW SET OF DOUBLE SPRINGS AND CROMOLY RETAINERS WITH HARDENED LOCKS AND A NEW SET OF PC SEALS. THESE HEADS ALSO HAVE NEW STAINLESS STEEL 1.7 RATIO FULL ROLLER ROCKER ARMS, NEW PUSHRODS, NEW ROCKER STUDS ,NEW GUIDEPLATES AND A NEW SET OF 12 POINTCHROMALLOYHEAD BOLTS WITH TEFLON TAPE FOR BEST SEAL!!!.
10. THIS ENGINE MAKES 576HP @5400RPM AND TORQUE IS 640LBS @4500 ALL DONE ON 91 OCTANE PUMP GAS WITH A 850CFM HOLLEY CARB!!!THIS ENGINES DOES NOT COME WITH OIL PUMP,OIL PAN, TIMING COVER OR BALANCER.
11. THIS ENGINE HAS BEEN COMPLETLY ASSEMBLED AND IT IS READY TO ADD ACCESSORIES AND RUN.
THIS ENGINE IS READY TO FINISH DRESS UP AS YOU WANT AND RUN!!. WE ARE A FULL SERVICE MACHINE SHOP WITH OVER 55 YEARS IN BUSINESS. DON'T SETTLE FOR SOMEONE TRYING TO SELL YOU A 2 BOLT MAIN BLOCK, CHEEP HYPEREUTECTIC CAST PISTONS OR NO NAME INTERNAL COMPONENTS, INSIST ON ONLY THE FINIST QUALITY FOR YOUR STREET OR RACE CAR. offer WITH CONFIDENCE IT REALLY IS AS NICE AS I DESCRIBED IN THE sale. offer EARLY AND HIGH IF YOU WANT IT.I WILL ANSWER ALL QUESTIONS.THANKS FOR LOOKING.
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