Description
Overview:
If you’re aiming to build a stout, reliable small block without breaking into exotic territory, this SBC-compatible block is the perfect foundation. Engineered to comfortably support combinations all the way up to 454 cubic inches, it delivers the strength, precision, and durability builders demand. With thick cylinder walls, a rigid casting, and smart machining allowances, this block is built to handle everything from a crisp street cruiser to a hard-hitting weekend track car.
Cylinder Bore (Rough):
4.114″ to 4.116″
Cylinder Bore (Max):
4.250″
Cam Bearings:
Durabond GMP-8
Cam Bearing Bore ID:
2.000″+/- .001″
Camshaft Position:
OEM
Cam Drive / Timing Set:
OEM equivalent
Cam Retaining Plate:
OEM
Cubic Inch (Max):
454
Cylinder Wall Thickness:
.230″ Nominal @ Max Bore
Water Jacket Style:
Siamese
Cylinder Skirt Length:
5.800″ Nominal
Deck Height:
9.025″ +.005″ / -.000″
Deck Thickness:
.600″ Nominal
Freeze / Core Plugs:
1-5/8″ x 10
Head Bolt / Stud Threads:
7/16-14 UNC
Lifter Bores:
.8437″ +/- .0003″
Lifter Retainer (If not using tie car lifters):
OEM W/Roller Provisions
Main Bearing Bore (Line Honed):
350 Main – 2.6402″ – 2.6410″
Main Bearing Caps:
Cast Iron 4-Bolt Splayed
Main Cap Bolts:
7/16-14 Inner / 3/8-16 Splayed
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
Oil Pump:
OEM
Oil Filter:
OEM
Oil Pan:
OEM
Rear Main Seal:
1 piece
Starter:
OEM
Stroke (Max):
Cast in clearance 3.875″
Timing Cover:
OEM
Approx. Weight with Main Caps:
170-190lbs
WARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov
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