GM Hemispherical Heads
Designed and Fully CNC Machined By Sonny's

SAR 762 CU. IN. 5.000” BORE SPACING SYMMETRICAL PORT HEADED ENGINE

10.75 to 1 compression to operate on 92 Octane gas 1200 HP,
with one 400 HP NOS system = 1600 HP with Sunoco GT unleaded gas
13.0 to 1 compression 1300 HP naturally aspirated, with one 400 HP
NOS system = 1700 HP, with 112 Octane Sunoco gas

Special Features

  • Sonny's fully in-house CNC ported Pro Stock symmetrical port heads
  • Sonny's/Donovan P/M 5.000 B.S. block with 1.000” raised cam
  • Bryant billet crank
  • BME 426 aluminum forged rods
  • BME pistons
  • Sonny's/Crane .904" roller lifters
  • 1.031 tool steel taper-wall pins
  • Federal Mogul “Hell Fire” rings
  • Manley/Stealth titanium valves & PSI springs
  • SAR/T&D shaft mounted rocker system w/ one-piece rocker bar
  • Jesel cam belt drive
  • Moroso 4-stage dry sump oiling
  • Moroso vacuum system
  • ATI balancer
  • MSD cranktrigger Ignition
  • SAR sheetmetal 4x2 intake manifold with linkage
  • (4) 2 barrel split dominator carburetors
  • Sheetmetal billet rail valve covers
  • Meziere hi-flow electric water pump
  • CSR starter
  • Fuel lines with 4 port regulator
  • Sonny's/LSM 60mm camshaft

Complete & Dyno Tested    $57,220.00

Additional Options

  • One Nitrous Oxzide system +400 HP w/ regulator and fuel lines
  • $1,800.00
  • Billet Block Option
  • $2,200.00