"MAMMOTH" 903 CU. IN. SEMI- HEMISPHERICAL 5.300" BORE SPACING PRO MOD NITROUS ENGINE

"MAMMOTH" 903 CU. IN. SEMI- HEMISPHERICAL 5.300" BORE SPACING PRO MOD NITROUS ENGINE - Sonny's Racing Engines & Components
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Description

"903 CUBIC INCH GM SEMI-HEMISPHERICAL HEADED PRO MOD NITROUS ENGINE" 1800+ NATURALLY ASPIRATED (RAW HORSEPOWER),

2900+ HP ON 5 MODERATE SYSTEMS
Price: CALL FOR PRICING
✷ Call 434-239-1009 or Contact Us

Features

  • Sonny's in-house fully CNC ported Pro Mod GM "Next Generation" Hemispherical cylinder heads
  • SAR special Billet aluminum 5.300 B.S. block with raised cam location
  • Bryant billet crank
  • GRP aluminum Billet rods
  • Sonny's/ Custom Pistons
  • 1.094 tool steel pins
  • Total Seal rings
  • Special titanium valves & PSI springs
  • SAR/ shaft mounted rocker arm system w/needle bearing roller tips
  • Jesel Keyed lifters 1-1/16"
  • Sonny's 70 mm cam
  • Sonny's Belt drive
  • Dailey 5-stage dry sump oiling system
  • Star Pro Mod vacuum system
  • ATI balancer
  • MSD cranktrigger
  • SAR Billet Runner manifold with 4x2 linkage
  • (2) Accufab 8500SL Throttle Bodies
  • EFI Technologies Electronic Fuel Injection with Run Map
  • Waterman Fuel Pump
  • Billet valve covers with Sonny's Logo
  • Mezier Pro Series Starter
  • Fuel lines and regulators for Nitrous
  • 5 Speedtech Nitrous systems (installed)

Options

Add 6th NOS Kit $2,400.00
Water Injection $1,325.00
For questions or additional information, call 434-239-1009 or Contact Us