Aluminum LS Engine L33 5.3 243 Heads, Diamond Forged Pistons, Bullet Racing Cam
$6,499.00
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Aluminum LS Engine L33 5.3 243 Heads, Diamond Forged Pistons, Bullet Racing Cam
- 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
- Piston to Valve Clearance: Intake Clearance: .150, Exhaust Clearance: .200
- Piston rings
- Diamond Top -.0405 Sec.- .0475 Oil - .1120
- Piston ring end gap: Top .015, 2nd: .022, Oil - standard tension
- 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
- 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
*** IMPORTANT: This engine ships from the builder in Philadelphia, Pennsylvania ***
*** Please ask any application or usage questions before purchase, we are happy to help! ***
LS engines in the same family as this L33 include
- LS1, LS2, LS3, LS6, LS7, LM7, LQ4, LQ9, L76, L92, L98, L99, LSA, LT1, LT4 4.8, 5.3, 5.7, 6.0, 6.2 7.0 liter V8
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