GILBERT CHEVROLET - GMR 350/400 CIRCLE TRACK ENGINE
GILBERT CHEVROLET - GMR 350/400 CIRCLE TRACK CRATE ENGINE
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.
Keys - scperformanceeng, gmperformanceeng, or gmgoodwrencheng for SC, GM, or Goodwrench engines. Use allengine for a complete list of all three.
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Great racing power at a reasonable cost (400 HP at 5500 RPM - Torque 400 @ 4500 RPM)
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 Fast Burn 400 engine is a great value with the 1053
forged steel crankshaft, aluminum heads with 2.00”/1.55” valves, hydraulic roller lifters, and an HEI distributor.
GM uses the 385 horsepower Fast Burn 385 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 400 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. This engine package DOES NOT include a water pump. Oil pan clears most GM rear steer chassis with stock engine
location. Oil pan is 7” deep at sump.
GMR 350/400 CIRCLE TRACK ENGINE SPECIFICATIONS
Horsepower:
400 @ 5,500 RPM
Torque:
400 ft./lbs. @ 4,500 RPM
Max. Rec. RPM:
5,800
Compression Ratio:
9.6:1
Block:
10105123 Cast iron four bolt with 1-piece rear main seal.
Crankshaft:
12556307 Forged 1053 Steel
Connecting Rods:
10108688 PM Steel
Pistons:
10159436 High silicon aluminum with offset pins.
Piston Rings:
12528817
Camshaft:
10185071 Hydraulic Roller; Lift: .474” I, .510” E; Duration @ .050: 208° I, 221° E
Timing Chain:
14088783
Cylinder Heads:
12464298 Aluminum, 62cc combustion chambers.
Intake Valves:
12555331 2.0”
Exhaust Valves:
12551313 1.55”
Valve Springs:
12551483 LT4 Chrome Silicon
Rocker Arms:
10089648 1.5 Ratio
Intake Manifold:
12496822 Aluminum High Rise, Single Plane
Distributor:
01104067 GM HEI
Valve Lash:
Zero
Spark Plugs:
FR5LS Gap @ .035, Rapid Fire #5 Gap @ .045
Ignition Timing
10° BTDC @ 800 RPM; Max. 32° Total @ 4,000 RPM with vacuum advance disconnected.
Fuel:
92 Octane Unleaded Gasoline
Lifters:
Hydraulic Roller
Oil Pan:
25534354 8 Quart Black Powder Coated Circle Track With Oil Filter. It includes a full louvered windage tray, three crankshaft scrapers, six trap doors, two runners,
oil temp fitting provision, oil level plug, 7” deep sump, and a 3-1/2” kickout on both sides.
Valve Covers:
25534359 Valve cover kit with breather tube
Oil Breather:
25534355 Valve cover breather kit
Rocker Arm Nut:
25534352 Special, ”kool nut design”
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.
