BBC 496ci 640 Hp Pro Street Crate Engine

BBC 496ci 640 Hp Pro Street Crate Engine


This brand new 496ci Pro Street Crate Engine with the Big M Block can go as big as 598ci. 100% CNC machined to blue print specifications, final plate honed to 4.310 for now, square decked, de-burred, hot washed, then meticulously assembled to perfection with 40 years of experience. Each engine is then dyno tested and tune for maximum power, reliability for any application. Engine data logged for oil pressure, temperature, torque, horsepower as well as time being run.

9.780″ Deck | 4.310″ Bore | 4.250″ Stroke | 6.385″ Rods | 640Hp @ 6600 rpm


  • Dart Big M 31273344 Siamesed Splayed Cap Race Block
  • ARP Head Bolt or Stud Kit Plate Honed with the Block
  • Dart Coated Cam Bearings and Block Small Parts Kit
  • 4340 Internally Balanced Steel Crank
  • 4340 Steel H-Beam Full Floating Rods with ARP 8740 Bolts
  • Clevite or King Race Series Main and Rod Bearings
  • JE or Wiseco 15cc 2618 Forged 10:1 Pistons (other ava)
  • Total Seal Plasma Moly File to Fit Ring Set
  • Competition Cams or Erson Hydraulic Street Heat Roller Cam
  • Competition Cams or Erson Hydraulic Street Heat Roller Lifters
  • Double Roller Torrington Bearing Indexable Timing Kit
  • GM Chrome Timing Cover Kit and TDC Pointer
  • SFI 8″ Dampener and Billet TDC Pointer
  • Bracket 320cc Aluminum In House Race Prepped New Heads
  • Erson, LPC or Manley 2.25 Intake and 1.88 Exhaust SS Valves
  • Pac Racing 1.550″ Springs and Chrome Moly Retainers
  • Fel Pro 1017 High Performance Head Gaskets
  • Competition Cams Ultra Gold Roller Rockers
  • Manley 3/8 x .135″ Wall Push Rods
  • AwesomeEngines ® CNC Engraved Sheet Metal Valve Covers
  • Moroso #22175 Oil Pump and Proper Pick Up Kit
  • Moroso #20401 7 Qt. Capacity Steel Oil Pan
  • Edelbrock Air Gap Dual or a Single Plane Intake Manifold and Spacer
  • Holley or QFT 950 cfm Carburetor
  • MSD Billet Distributor, 8.5mm Wires and NGK Spark Plugs
  • AwesomeEngines®Free 48 State Freight


Dart Big M Siamese Sportsman Block up to 4.600″ for 565ci
+ $  175.00
K1 or Molnar Internally Balanced 4340 Steel Crank Shaft
+ $ 295.00
K1 or Molnar Machined from 4340 Billet Steel H-Beam Steel Rods with ARP 2000 Rod Bolts
+ $ 295.00
Competition Cams or Erson 7/4 Swap Pro Street Heat Solid Roller Cam, HD Bushed Hippo Lifters, Upgraded Valve Spring and 10° Retainer Kit
+ $ 795.00
Jesel or T&D Sportsman Shaft Rocker System
+ $1275.00
Cometic or Fel Pro MLS Head Gaskets Installed
+ $ 125.00
1000 Hp NOS Nitrous Package System: Hell Fire Rings, .180″ Tool Steel Pins, MLS Head Gaskets, Inner Valley Stud Kit, NX
+ $1275.00

Dyno Tested & Tuned with 93° Exxon • HP Corrected To Sea Level

Free Freight Applies to Engine Shipped to a Commercial Address or Terminal Closest to Your Zip Code for Pickup 48 States

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