GM Performance Parts Circle Track Crate Engine 350 350 HP
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Top > Circle Track Engines > Circle Track 350 HP

CIRCLE TRACK 350/350
P/N 88958602

 

 
Circle Track 350/350
 
Circle Track 350/350 hp
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Our workhorse 350-hp iron-head engine is very durable and the most affordable of the three sealed engines GM Performance Parts offers. The "Best Value" in circle track engines.

• All-new parts
• Uses 92-octane pump gas
• Fully assembled with sealing bolts


COMPLETE YOUR CRATE ENGINE
Select the parts below to finish off your
racing crate engine.

P/N 12361056 - Spark Plug Wires
8-mm red double-wall silicone plug wires
with 135° spark plug boots.

P/N 12495826 - Aluminum Water Pump
Log-leg design suitable for competition.

P/N 14011012 - Short-Leg Aluminum Water Pump
3/4" shaft diameter, Corvette-style pump.

Note: Operation requires addition of carburetor, starter, water pump, plug wires, externally balanced flywheel, and exhaust system, all not included.

RACER'S NOTES
• When we build our Factory Stock racing engines, we seal them with special GM-branded round-head bolts at the intake manifold, cylinder head, front cover, and oil pan.
• We achieved the 350-hp rating for this crate engine with a Holley 650-cfm four-barrel carburetor, Holley P/N 0-80541-1; 32-inch-long by 1-5/8-inch-into-1-3/4-inch stepped headers with 3-inch collectors; and 92-octane gasoline.
Circle Track 350/350 hp

Order your GM Performance Circle Track Engine by clicking below:

88958602 350/350hp
88958603 350/355hp
88958604 350/400hp

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Circle Track 350/350
GM Part Number
Details
Engine type:
-
Chevy small-block V8
Horsepower:
-
350 @ 5000 rpm
Torque:
-
390 lb-ft @ 3800 rpm
Displacement, (cu in)
-
350
Bore x stroke (in)
-
4.00 x 3.48
Block
P/N 10105123
cast iron 4-bolt with 1-piece rear main seal
Crankshaft:
P/N 14088527
nodular cast iron
Connecting rods:
P/N 10108688
powered-metal steel
Compression ratio:
-
9.1:1
Pistons:
P/N 12361371
cast-aluminum
Piston rings:
P/N 14089025
moly-filled
Intake manifold:
P/N 12366573
aluminum dual-plane high-rise
Camshaft type:
P/N 24502476
flat-tappet hydraulic lifters
Camshaft lift (in):
-
.435 intake/.460 exhaust
Camshaft duration(@ .050 in):
-
212° intake/222° exhaust
Rocker arm ratio:
-
1.5:1
Rocker arms:
P/N 10089648
stamped-steel
Valve, exhaust
P/N 12550901
1.50"
Valve, intake
P/N 10241743
1.94"
Valve lash:
-
zero
Timing chain:
P/N 14088783
single-roller
Valve springs:
P/N 10212811
single-coil
Cylinder heads:
P/N 12558060
GM Vortec cast iron, 64cc combustion chambers
Distributor:
P/N 1104067
HEI
Ignition timing:
-
max 32° total @ 4000 rpm
Spark Plugs:
Option:
-

R44 LTS gap @ .045
MR43LTS

Rpm, maximum recommended:
-
5500
Fuel, minimum recommended
octane:
-
92
CrateEngineDepot.com
800 E. Northwest Highway
Arlington Heights, IL 60004
800-441-5150


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