ZZ4 350 Tech Specs

Block Part Number:

10105123

Block Type:

Cast iron with 4-bolt main caps

Bore x stroke (in):

4.00 x 3.48

Camshaft duration (@.050 in):

208 degree intake / 221 degree exhaust

Camshaft lift (in):

.474 intake / .510 exhaust

Camshaft Part Number:

10185071

Camshaft type:

Steel hydraulic roller

Compression ratio:

10:1

Connecting Rod Part Number:

10108688

Connecting rods Type:

Powdered metal steel

Crankshaft Part Number:

12556307

Crankshaft Type:

Forged steel

Cylinder head Part Number:

12556463

Cylinder head Type:

Aluminum; 58cc chambers

Displacement (cu in):

350

Engine Name:

ZZ4 350:

Engine type:

Chevy small-block V-8

Ignition timing:

10 degree BTDC @ 800 rpm 32 degree total @ 4000 rpm with vacuum advance disconnected

Maximum rpm:

5800

NOTE:

Distributor with melonized steel gear MUST be used with long blocks and partial engines with steel camshafts, or engine damage will occur.

Piston Part Number:

10159436

Pistons Type:

High-silicon aluminum with offset pins

Recommended fuel:

92 octane

Rocker arm ratio:

1.5:1

Rocker arms Part Number:

10089648

Rocker arms Type:

Stamped steel

Valve size (in):

1.94 intake / 1.50 exhaust