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Top > Circle Track Engines > Circle Track 400 HP |
GM Performance Circle Track Engine 350/400
CIRCLE TRACK 350/400
P/N 88958604
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GM
Performance Circle Track Engine
350/400 |
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www.CrateEngineDepot.com |
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Our most
powerful sealed engine, At 400 horsepower and 400 lb-ft torque, this combination
provides the best "bang for the buck." Add fuel, spark, and
go racing.
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• Fast Burn
aluminum heads for increased flow
• Open-plenum high-rise manifold for high-rpm power
• All-new parts, fully assembled with sealing bolts |
| A
Satisfied Racer Letting Us know How Much He Likes Our Racing Crate Engines:
"The GM Performance Parts Circle Track Crate Engine in our
Super Truck has led us to back-to-back Super Truck track championships.
We have not had one problem with the engine. It has been a tremendous
cost saver-we've probably saved $10,000 over the last two seasons because
of its dependability. This engine is a proven champ!"
Scott Borchetta
2003 & 2004 Music City Motorplex
Super Truck Points Champion
RACER'S NOTES
• We factory-seal the 350/400 Limited Late Model racing engine with special
GM-branded, round-head bolts at the intake manifold, cylinder head, front
cover, and oil pan.
• We achieved the 400-hp rating 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.
Order your GM Performance Circle Track Engine by clicking below:
88958602 350/350hp
88958603 350/355hp
88958604 350/400hp
19171821
CT525/525hp
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Circle
Track 350/400 |
GM
Part Number |
Details |
| Engine
type: |
- |
Chevy
small-block V8 |
| Horsepower: |
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400 @ 5500 rpm |
| Torque: |
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400 lb-ft @ 4500 rpm |
| Displacement,
(cu in) |
- |
350 |
| Bore
x stroke (in) |
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4.00
x 3.48 |
| Block |
P/N
10105123 |
cast
iron 4-bolt with 1-piece rear main seal |
| Crankshaft: |
P/N
12556307 |
forged steel |
| Connecting
rods: |
P/N
10108688 |
powered-metal
steel |
| Compression
ratio: |
- |
9.6:1 |
| Pistons: |
P/N
10159436 |
high-silcone cast aluminum with offset, pins |
| Piston
rings: |
P/N
12528817 |
moly-filled |
| Intake
manifold: |
P/N 12496822 |
aluminum
single-plane high-rise |
| Camshaft
type: |
P/N
10185071 |
hydraulic-roller lifters |
| Camshaft
lift (in): |
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.474
intake/.510 exhaust |
| Camshaft
duration(@ .050 in): |
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208°
intake/221° exhaust |
| Rocker
arm ratio: |
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1.5 |
| Rocker
arms: |
P/N
12367345 |
roller-style aluminum |
| Valve,
exhaust |
P/N
12551313 |
1.55" |
| Valve,
intake |
P/N
12555331 |
2.00" |
| Valve
lash: |
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zero |
| Timing
chain: |
P/N
14088783 |
single-roller-silent
type |
| Valve
springs: |
P/N
12551483 |
LT4 chrome silicone |
| Cylinder
heads: |
P/N
12464298 |
aluminum, 62cc combustion chambers |
| Distributor: |
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(not included) |
| Ignition
timing: |
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10°BTDC @ 800 rpm: 32° total @ 4000 rpm with vacuum advance disconnected |
Spark
Plugs:
Option: |
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R44
LTS gap @ .045
MR43LTS |
| Rpm,
maximum recommended: |
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5800 |
Fuel,
minimum recommended
octane: |
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92 |
| NOTE: The distributor we recommend with the 350/355
engine has a melonized steel gear. This MUST be used with engines with steel
camshafts, or engine damage can occur. |
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CrateEngineDepot.com
800-441-5150 |
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