CT355 350/355 Circle Track Engine
(Part # 88958603)
Special Price: $4,550.00
Great racing power at a reasonable cost.
This is a factory sealed crate engine package, complete from intake manifold, stamped steel valve covers with racing style breathers, and 8 quart dual kick-out circle track racing oil pan. The ZZ4 engine is a great value with the 1053 forged steel crankshaft, aluminum heads with 1.94”/1.50” valves, hydraulic roller lifters, HEI distributor, and normal rotation iron water pump included.
The base engine is a ZZ4 350ci 355 horsepower, with the following parts:
P/N 10105123 4 bolt iron block
P/N 14088533 1053 steel crankshaft
P/N 10108688 PM rod
P/N 10159436 High silicon aluminum piston
P/N 10185071 Camshaft with hydraulic roller lifters
P/N 12556463 Aluminum head
P/N 10185063 Dual plane intake manifold
P/N 1104067 HEI distributor
P/N 25534354 8 quart circle track oil pan (with oil filter)
P/N 25534359 Valve cover kit with breather tube
P/N 25534355 Valve cover breather kit
P/N 25534352 Special rocker arm nut ”kool nut design”
TECH SPECS: These engines are sealed at the intake manifold, cylinder head, front cover, and oil pan with special twist off bolt heads. The 355 HP @ 5500 RPM was derived from a superflow dyno using a 4 barrel 650 cfm Holley carburetor P/N 80541-1, 32” long by 1 5/8” to a 1 3/4” stepped header with a 3” collector, and 92 octane unleaded gasoline. Oil pan clears most GM rear steer chassis with stock engine location. Oil pan is 7” deep at sump.
| Technical Information |
| Horsepower | 355 @ 5,250 RPM
|
| Torque | 405 ft./lbs. @ 3,500 RPM
|
| Max. Recommended RPM | 5,800
|
| Compression Ratio | 10.1:1
|
| Block | 10105123 Cast iron four bolt with 1-piece rear main seal.
|
| Crankshaft | 12556307 Forged Steel
|
| Connecting Rods | 10108688 PM Steel
|
| Pistons | 10159436 High silicon aluminum with offset pins.
|
| Piston Rings | 12528817- LT4 Low Tension
|
| Camshaft | Hyd.Roller
Intake Lobe 208 @ .050 .474 lift
Exhaust Lobe 221 @ .050 .510 lift |
| Timing Chain | 14088783 Single Roller
|
| Cylinder Heads | 12556463 Aluminum, 58cc combustion chambers.
|
| Intake Valves | 10168465 1.94 |
| Exhaust Valves | 10168514 1.50” |
| Valve Springs | Springs
12551483 LT4 Chrome Silicon 101 lbs. @ 1.780 installed height.
|
| Rocker Arms | 10089648 1.5 Ratio
|
| Intake Manifold | 10185063 Aluminum Dual Plane
|
| Carburetor | Dynoed with a Holley 650 cfm |
| Distributor | 1104067 HEI
|
| Starter | N/A |
| Water Pump | Cast Iron |
| Valve Lash | Zero |
| Spark Plugs | FR5LS .035 GAP
#5 Rapid Fire .045 gap |
| Fuel | 92 Octane |
| Ignition Timing | 10° BTDC @ 800 RPM; Max. 32° Total @ 4,000 RPM with vacuum advance disconneced. |
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