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GILBERT CHEVROLET - GMR 350/350 Circle Track Crate Engine
GILBERT CHEVROLET - GMR 350/350 CIRCLE TRACK CRATE ENGINE
This is a factory sealed GMPP crate engine package, complete from high rise dual plane intake manifold, stamped steel valve covers
with racing style breathers, and 8 quart single kick-out circle track racing oil pan.
Keys - scperformanceeng, gmperformanceeng, or gmgoodwrencheng for SC, GM, or Goodwrench engines. Use allengine for a complete list of all three.
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88958602 GMR 350/350 Circle Track Engine
Great racing power at a reasonable cost (350 HP @ 5000 RPM - Torque 390 @ 4000 RPM)
This is a factory sealed crate engine package, complete from high rise dual plane intake manifold, stamped steel valve covers
with racing style breathers, and 8 quart single kick-out circle track racing oil pan.
The 350 engine is a great value with the nodular cast iron crankshaft, iron vortec heads with 1.94”/1.50” valves, flat tappet
hydraulic lifters, and HEI distributor. GM uses the 330 horsepower 350 HO as the base for this engine.
Technical Notes: These engines are sealed at the intake manifold, cylinder head, front cover, and oil pan with special
twist off bolt heads. The 350 HP @ 5000 RPM was derived from a Superflow dyno using a 4 barrel 650 cfm Holley carburetor
80541-1, 32” long by 1 5/8” to a 1 3/4” stepped header with a 3” collector, and 92 octane unleaded gasoline. This engine
package DOES NOT include a water pump. Oil pan clears most GM rear steer chassis with stock engine location. Oil pan is 8” deep
at sump.
GMR 350/350 CIRCLE TRACK ENGINE SPECIFICATIONS
Horsepower:
350 @ 5,000 RPM
Torque:
390 ft./lbs. @ 3,800 RPM
Max. Rec. RPM:
5,500
Compression Ratio:
9.1:1
Block:
10105123 Cast iron four bolt with 1-piece rear main seal.
Crankshaft:
14088527 Nodular cast iron.
Connecting Rods:
10108688 PM Steel
Pistons:
12361371 Cast Aluminum
Piston Rings:
14089025
Camshaft:
20502476; Lift: .435” I, .460” E; Duration @ .050: 212° I, 222° E
Lifters:
Hydraulic Flat Tappet
Timing Chain:
14087014
Valve Cover::
25534359 Kit With Breather Tubes
Oil Breather::
25534355 Breather Kit
Cylinder Heads:
12558060 Cast Iron Vortec, 64cc combustion chambers.
Intake Valves:
10241743 1.94”
Exhaust Valves
12550901 1.50”
Valve Springs:
10212811
Rocker Arms:
10089648 1.5 Ratio
Rocker Arm Nut:
25534352 Special, ”Kool Nut Design”
Intake Manifold:
12366573 Aluminum High Rise Dual Plane
Distributor:
01104067 GM HEI
Valve Lash:
Zero
Spark Plugs:
R44LTS Gap @ .045, Rapid Fire #8 Gap @ .035
Ignition Timing:
Max. 32° Total @ 4,000 RPM
Fuel:
92 Octane Unleaded Gasoline
Oil Pan:
25534353 8 Quart Black Powder Coated Circle Track With Oil Filter. It includes a full louvered windage tray, oil scraper, three trap doors,
oil level plug, 8” deep sump, a 3-1/2” kickout on the right side, and a 3/4” oil pick up tube.
Technical Notes: Carburetor, spark plug wires, starter, oil filter and oil filter adaptor, and exhaust manifolds are not
included. Distributor P/N 01104067 or melonized distributor gear P/N 10456403 must be used on all crate engines with steel camshafts.
