ATK Engines 13ZB Chevy 350 ci. Fully-Machined Cast-Iron Bare Block w/1-Piece Rear Main Seal [4 in. Bore]
059-13ZB
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Chevy Small Block
The ATK 350ci Bare Block will start your engine build with a solid foundation and is NOT assembled with pistons, piston rings, and crankshaft. This stroker-clearanced bare block with 1-piece rear main seal comes with the cam bearings and brass freeze plugs installed.
Engine Specifications:
- Block: 100-Percent New Bare Block with 1-Piece Rear Main Seal
- Bore: 4.000 in. (4.0003-4.0008 in. - Pistons size vary, final honing may be required)
- Maximum Bore: 4.060 in. recommended
- Displacement: 350 ci
- Main Journal Type: Chevy 350
- Engine Block Material: Premium Iron Alloy
- Engine Block Style: Aftermarket, based off the Vortec 350 Roller Block
- Engine Block deck Height: Standard Deck
- Engine Oiling System: Priority Main
- Fuel Pump Boss: Yes
- Main Bolt Style: 4 Bolt
- Main Caps Included: Yes
- Main Cap Material: Cast Iron
- Main Cap Fasteners Included: Yes
- Main Bearings Included: No
- Camshaft Bearings: Dura-Bond, installed and clocked to OEM position
- Freeze Plugs: Brass, installed and sealed
- Oil Galley Plugs: Installed and sealed
- Roller & Flat Tappet Camshaft Compatible: Yes
- Stroker Clearanced: Yes, but the assembler must always check as components differ.
Block Specs
- Camshaft bearing line boring in STD. (1.8705 in. – 1.8710 in.)
- Main, line honed (2.6408 in. - 2.6415 in.)
- Cylinder honing ID: (4.0003-4.0008 in.)
- Minimum deck height (9.014 in.)
Disclaimer: The recommended components listed are ATK’s recommendations of parts to be used, applications vary and your build may need something different. Contact ATK for a recommendation if you are not certain about a component to use. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.
BEFORE USING THIS PRODUCT PLEASE READ THE FOLLOWING
Engine assembly should only be attempted by experienced engine builders.
Warranty
This Block is sold without warranty or guarantee of any kind. Under no circumstances shall ATK be liable for any special, incidental or consequential damages of any kind from the purchase, installation, or use of this block. Please Note: Any Claim of damage or defects in machining or Clearances must be made prior to assembly.
Prior to Assembly
- 1) Checking fitment, compatibility, and purpose of parts used in this block is the responsibility of the engine builder.
2) All visual inspection, measurements and clearance checks should be done prior to assembly.
3) Any claim of damage or defects in machining must be made prior to assembly.
4) This block was torque plate honed. A torque plate must be installed prior to any cylinder bore measurements
5) This block is finished honed to accept Moly, Chrome and Cast Piston Rings. Ring end gap should be checked at time of installation. Surface finish is 0.3 a .07 um Ra (12 a 28uim Ra).
6) The block deck has been surfaced finished. Piston deck clearance should be checked at time of assembly.
7) All tolerances are machined to OE Specification.
8) Stroker Clearances will accept a 3.75 crank using “H” Beam Rods. Connecting rod to cam clearance must always be checked before completing assembly.
9) Final wash. This block has been treated with a rust inhibitor. This block must be thoroughly washed before assembly. Use hot soapy water and rinse with fresh water then dry thoroughly to prevent rust.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Specifications:
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.