‘71 Pro-Touring Chevelle Engine Specifications & Other Data:
ZZ 540 Technical Information |
|
Horsepower |
TBD during break-in dyno runs,
AC Performance, (Best estimate is between 675-725 HP) |
Torque |
TBD during break-in dyno runs (Best estimate is over 600 ft. lbs. thru all of the powerband RPM range) |
|
|
Compression
Ratio |
9.32:1 |
Block |
GMPP Gen 6 Big Block Chevy, P/N: 10237292 Cast iron
- four bolt main caps |
Crankshaft |
Callie’s RaceMaster 4340 Non-Twist 4.250” stroke, internal
balance |
Connecting Rods |
Eagle 3D H-Beam, 4340 with ARP 7/16" bolts |
Crankshaft Studs Pistons |
ARP Main Stud Kit w/washers SRP Forged Aluminum, Flat Top design, single -3CC eyebrow
notch |
Piston Rings |
Sealed Power, Moly design |
Camshaft |
Comp Cams
Hydraulic Roller SEE CAM CARD |
Timing
Chain |
Cloyes Hex-Adjust Single roller |
Cylinder Heads |
|
Intake Valves |
2.300" Stainless Steel |
Exhaust Valves |
1.88" Stainless Steel |
Valve Springs |
AFR with matched spring pressures for hydraulic
roller camshaft |
Rocker Arms |
Comp Cams full roller design, Stainless Steel, Std
1.7:1 ratio |
Intake
Manifold |
Aluminum
Holley – Fuel Injectors pre-plumbed |
Induction System |
Holley Commander 950 MPFI Kit w/42 lb./hr. injectors
& 1,000 cfm billet throttle body |
Distributor |
MSD Pro Billet, Electronically controlled by Holley
Commander 950 ECU |
Starter |
Gear
Reduction, Mini Starter design by Summit Racing |
Water
Pump |
Stewart
Aluminum Pump, included with Vintage Air’s FrontRunner
Kit |
Valve Lash |
Hydraulic Camshaft, on base circle of lobe remove play
& add ½ turn of pre-load |
Spark
Plugs |
AFR-recommended
Autolite AR3932, .750” reach, 5/8” hex drive, 14MM
threads |
Fuel |
93 octane
pump gas |
Ignition
Timing |
8º BTDC @
800 RPM |
Technical
Notes: |
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