Description
Overview:
When your LS build demands serious displacement, you need a block that’s engineered to go the distance—and this LS-compatible foundation is built to stretch all the way to an impressive 519 cubic inches. With reinforced architecture, thick cylinder walls, and precision-machined surfaces, it delivers the rigidity and reliability needed for high-horsepower, high-rpm combinations. Whether you’re assembling a torque-rich street monster, a boosted track bruiser, or a no-compromise stroker setup, this block gives you the headroom and confidence to push your LS platform far beyond stock limits. Big inches, big power, and rock-solid dependability start right here.
Cylinder Bore (Rough):
4.114″ to 4.116″
Cylinder Bore (Max):
4.185″
Cam Bearings:
Dura-Bond CH-25
Cam Bearing Bore ID:
#1 & 5: 2.3482±.0005″, #2 & 4: 2.3285±.0005″, # 3: 2.3088±.0005″ w/ stock avaialble to bore up to 2.362″ (60mm)
Camshaft Position:
Stock OEM position – 4.885″ to Crank
Cam Drive / Timing Set:
Accepts OEM style
Cam Retaining Plate:
BluePrint Engines P/N:18111370
Cubic Inch (Max):
519 in3
Cylinder Wall Thickness:
.210″ @ 4.185″ Bore
Cylinder Skirt Length:
6.210″
Deck Height:
9.705″ +.005/-.000″
Deck Thickness:
.600″
Freeze / Core Plugs:
1 5/8″ dia, BluePrint Engines p/n: 10110016 (Qty 8)
Head Bolt / Stud:
6 Per Cylinder
Head Bolt / Stud Threads:
M11 x 2.0 2.36″ Deep (+M8 uppers)
Lifter Bores:
.8437 ±.0005″
Lifter Retainer (If not using tie car lifters):
GM LSX Style
Main Bearing Bore (Line Honed):
2.7509 / 2.7514″
Main Bearing Caps:
BILLET STEEL, OEM style, 6 Bolts Per Cap
Main Cap Bolts:
Inner: M10 x 102mm, Outer: M10 x 84mm (stud), Skirt: M8 x 24mm
Main Fastener Tensile Strength:
180,000 to 210,000 PSI
P1 Main Stud Kit P/N:
TBD
ARP Main Stud Kit P/N:
TBD
Material (Block):
EN-GJL-250 Iron
Oil System:
Priority Main Oiling System w/ Center Crossover
Oil Pump:
OEM
Oil Filter:
OEM (in Oil Pan)
Oil Pan:
OEM
Oil Gallery Plug / Barbell / Dogbone (rear):
OEM
Piston Oilers / Squirters:
No
Rear Main Seal:
Accepts OEM Style Rear Cover
Starter:
OEM, Passenger Side Only
Stroke (Max):
4.250″
Timing Cover:
OEM
Valley Cover:
OEM
AFM/DOD Compatible:
No
Approx. Weight with Main Caps:
230-250lbs
WARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov
Reviews
There are no reviews yet.