Each MABBCO® long block is custom assembled as ordered so please call for current build times.

903-597-2441

Motors are what we do, and all we do, and what we've been doing since 1964.

Mabbco Motors - 800-639-2949

Email Address Message

MARINE GM Oldsmobile 5.7 350 Long Block 1977-1980 - NO CORE REQUIRED - 90 Day Limited Warranty

Email Page

Click Image To Enlarge

Domestic Shipping to a Commercial Address without a Lift-gate
* Alaska and Hawaii, please call for shipping rates to these states.
Domestic Shipping to a Residential Address
* Alaska and Hawaii, please call for shipping rates to these states.

Details

This MABBCO® MARINE Remanufactured Long Block is intended for a GM Oldsmobile 5.7 350 motor, model years 1977-1980. This block is identifiable by its #523B or #964A block casting number. Each MABBCO® long block is custom assembled as ordered so please call for build time. MABBCO® MARINE long blocks include NEW pistons, rings, rod bearings, main bearings, cam bearings, timing set, gasket set (with Marine Cylinder Head gaskets), oil pump, lifters, and brass freeze plugs. MABBCO® long blocks are sold outright (No Core Return Required). Prior to shipment, all MABBCO® MARINE long blocks are SpinTested on a Computerized Engine test stand for proper oil pressure and compression and come complete with the push rods and rocker arms installed and pre-set.

Please note, the year model of your engine may differ from the year model of your boat, please call 903-597-2441 for assistance with engine identifiaction.

Looking for more performance? Call for performance upgrades, such as, HP marine camshafts and HV oil pumps.

MABBCO® Remanufactured Long Blocks carry a 90 day Product Only Limited Warranty (No Labor or Shipping Allowance). Call or see Limited Warranty for details.

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.