Aluminum LS Engine L33 5.3 243 Heads, Diamond Forged Pistons, Bullet Racing Cam

$6,399.00
In stock
SKU
PRE ENGINE

Ships from Pennsylvania.  GM L33 Aluminum 5.3 LS V8 engine built by Philadelphia Racing Engines for street, race, all around high performance use.  GM LS engine family: LS1, LS2, LS3, LS6, LM7, LQ4, LQ9, L76, L92, L98, 4.8, 5.3, 5.7, 6.0 liter V8

  • GM L33 Aluminum 5.3 LS V8 engine built by Philadelphia Racing Engines for street, race, all around high performance use

  • This engine has not been on a dyno, however this camshaft combination has been tested in a 5.3L and produced 442 horsepower at 6,200 rpm and 412 lb-ft of torque at 5,000 rpm

  • Compression is 10.2 to 1, higher than the stock 9.9 to 1, so performance should be slightly higher  

  • 80 pounds lighter than a cast iron block LS engine!

  • Stock crankshaft machined .010 main bearings, .010 rod bearings, 24x reluctor

  • 243 Casting Cylinder heads machined with 2.0 intake valves, 1.55 exhaust valves, 64.45cc chambers

  • Pistons: Diamond forged, 11592R1

  • Bore 3.780", Stroke 3.622", Rod 6.098"
  • Compression distance: 1.331"
  • 400 grams
  • -2.0cc valve reliefs
  • 10.2 compression
  • 3D milling on piston crowns
  • Offset pins for quiet operation
  • 1.0mm x 1.2mm x 2.8mm ring package
  • Side gas ports for better ring seal
  • Top ring down dimension: .250"
  • Premium 8620 .945 x 2.500 .185 wall wrist pins
  • Moly skirt coating for friction loss and skirt wear protection
  • Valve pocket depth: 0.176" intake and .103" exhaust
Camshaft
  • Bullet Racing Hydraulic Roller
  • CLS 273/281-12HL
  • Duration at .050: 223 / 231
  • Lobe Lift: .361 / .363
  • Valve Lift: .614 / .617
  • Lobe Separation: 112
  • Camshaft degree: 109
  • Valve Springs: Pac 120 pounds on valve seat
  • Timing chain: Rollmaster single roller
  • Head gasket: Victor MLS

ENGINE BUILD SHEET

Name:

Parts For Speed

Engine:

5.3L LS Alum Block

Date:

2/3/19

Cylinder Block:

5.3L Alum.

Connecting Rods:

Stock

Crankshaft

Stock

Cylinder Heads:

Stock

#243 Cathedral Port

LS1

I-2.000 , E-1.55

65cc 

Pistons:

11592R1

Bore-3.780 Comp Height 1.331

Vol.-2.12cc Pin 2.500

400 Grams

 

Diamond Forged

Rings:

Diamond

Top -.0405

Sec.- .0475

Oil - .1120

 

Oil System:

10355 Melling

Performance

Camshaft:

Bullet

CLS 273/281-12HL

Dur. .050 223 – 231

Lobe Lift .361 - .363

Separation - 112

Lifters:

HLY

 

Cam Drive:

Roller Master 

Valve Spring Retainers:

Stock

Valve Springs:

PAC 

120 #S On Seat

 

Pushrods:

Stock

Rocker Arms:

Stock  

Valve Lash (Hot):

Intake

Exhaust

HLY

HLY

Harmonic Balancer:

 

Intake Manifold:

 

Induction System:

 

Head Gasket:

Victor MLS

Intake and Exhaust Gaskets:

 

Bearings:

Main – MS2199p .010 #1-.0018,#2-.002,#3-.002,#4-.0018,#5-.0022

Rods- CB663p .010 #1-.002,#2-.002,#3-.0025,#4-.0022,#5-.0022,#6-.0025,#7.0025,#8-.0025

Torque Specs:

Mains:

 

Rods:

 

Heads:

 

Intake:

 

Rocker Arm Studs:

 

Damper:

 

Cam Gear:

 

Flexplate:

 

Lube:

 

 

 

 

 

 

 

 

 

 

 

Piston to Valve Clearance

Cylinder

Intake Clearance

Exhaust Clearance

1

.150

.200

2

.150

.200

3

.150

.200

4

.150

.200

5

.150

.200

6

.150

.200

.7

.150

.200

8

.150

.200

 

 

 

 

 

 

 

 

 

 

Camshaft Degree -  109________°

 

 

 

Cylinder 1

Bore Diameter:

Piston Diameter

Skirt Clearance:

Piston Ring End Gap:

Top

2nd

Oil

3.780

3.745

.0035

Deck Height:

Oil Clearance:

Pin Oil Clearance:

.015

.022

STD.

.010

 

.0008

Cylinder 2

Bore Diameter:

Piston Diameter

Skirt Clearance:

Piston Ring End Gap:

Top

2nd

Oil

3.780

3.745

.0035

Deck Height:

Oil Clearance:

Pin Oil Clearance:

.015

.022

STD.

.010

 

.0008

Cylinder 3

Bore Diameter:

Piston Diameter

Skirt Clearance:

Piston Ring End Gap:

Top

2nd

Oil

3.780

3.745

.0035

Deck Height:

Oil Clearance:

Pin Oil Clearance:

.015

.022

STD.

.010

 

.0008

Cylinder 4

Bore Diameter:

Piston Diameter

Skirt Clearance:

Piston Ring End Gap:

Top

2nd

Oil

3.780

3.745

.0035

Deck Height:

Oil Clearance:

Pin Oil Clearance:

.015

.022

STD.

.010

 

.0008

Cylinder 5

Bore Diameter:

Piston Diameter

Skirt Clearance:

Piston Ring End Gap:

Top

2nd

Oil

3.780

3.745

.0035

Deck Height:

Oil Clearance:

Pin Oil Clearance:

.015

.022

STD.

.010

 

.0008

Cylinder 6

Bore Diameter:

Piston Diameter

Skirt Clearance:

Piston Ring End Gap:

Top

2nd

Oil

3.780

3.745

.0035

Deck Height:

Oil Clearance:

Pin Oil Clearance:

.015

.022

STD.

.010

 

.0008

Cylinder 7

Bore Diameter:

Piston Diameter

Skirt Clearance:

Piston Ring End Gap:

Top

2nd

Oil

3.780

3.745

.0035

Deck Height:

Oil Clearance:

Pin Oil Clearance:

.015

.022

STD.

.010

 

.0008

Cylinder 8

Bore Diameter:

Piston Diameter

Skirt Clearance:

Piston Ring End Gap:

Top

2nd

Oil

3.780

3.745

.0035

Deck Height:

Oil Clearance:

Pin Oil Clearance:

.015

.022

STD.

.010

 

.0008

 

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