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ZZ6 Engine Specifications:
Displacement: ................................................. ...............................350 cubic inches
Bore x Stroke: ................................................. .............................. 4.00 inch x 3.48 inch
Compression . ............................................................................... 9.72 to 1 nominal
Block: ............................................................................................. Cast iron, four-bolt intermediate mains
Cylinder Head: ............................................................................... Cast aluminum, 23º valve angle
Valve Diameter (Intake/Exhaust): ........................................ 2.00"/1.55"
Chamber Volume: .......................................................................... 62cc (nominal)
Crankshaft: .................................................................................... 1053 Forged steel, 1 piece rear seal
Connecting Rods: .......................................................................... Forged, powdered metal, 3/8" bolts
Pistons: .......................................................................................... Cast aluminum
Rings: ............................................................................................ Moly coated cast iron
Camshaft: ...................................................................................... Hydraulic roller tappet
Lift: ....................................................................................... 0.474" Intake valve lift, 0.510" Exhaust valve lift
Duration: .............................................................................. 208° intake, 221° exhaust @.050" tappet lift
Centerline: .......................................................................... 108° ATDC intake, 116° BTDC exhaust
Rocker Arm Ratio: ......................................................................... 1.5:1
Timing Chain: ............................................................................... 8 mm single roller design
Oil Pan: .......................................................................................... 4-quart
Oil Pressure (Normal): .................................................................. 40 psi @ 2000 RPM
Recommended Oil: ........................................................................ 5w30 synthetic motor oil (after break in)
Oil Filter: ....................................................................................... AC Delco part # 25324052 or PF454
Valve Lash: .................................................................................... ½ to ¾ turn down from zero lash
Fuel: ............................................................................................. Premium unleaded
Maximum Engine Speed: .............................................................. 5800 RPM
Spark Plugs: .................................................................................. AC Delco part # MR43LTS
Spark Plug Gap ............................................................................. .040"
Spark Timing: ................................................................................ 12 degrees @ IDLE rpm with the jumper device installed in the
Firing Order: .................................................................................. 1-8-4-3-6-5-7-2
Information may vary with application. All specifications listed are based on the latest production information available at the time of
printing.
Chevrolet Performance Parts ZZ6 EFI Deluxe Engine
TITLE
ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1/2 x 11
WHITE 16 POUND BOND PAPER. PRINT ON BOTH SIDES, EXCLUDING TEMPLATES.
TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS.
MAT sensor connector
19368171
IR 04MY18
PART NO.
DATE
04MY18
Initial Release - William Philippin
19
SHEET
REVISION
63
OF
AUTH
N/A
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