What is the lead time for production?

The average lead time is 1-3 months for both peak and off-season periods.

Does the block include 4-bolt main caps?

Yes, the center three journals feature 4-bolt main caps (Steel or High-Strength Iron) for enhanced rigidity.

High Performance Cast Iron GM 350 HP Small Block Engine Cylinder Block

Name: High Performance Cast Iron GM 350 HP Small Block Engine Cylinder Block
Brand: Xinlong Machinery & Equipment (Zhengzhou) Co., Ltd.
SKU: 2074467452

Henan, ChinaXinlong Machinery & Equipment (Zhengzhou) Co., Ltd.

US$1,032.00

1 Piece

Product profile

Customization

Available

Certification

ISO9001, TS16949

Standard Component

Model NO.

GM 350 HP

Technics

Casting

Material

Iron

Type

Cylinder Block

Application

Marine / Auto Engine

Bore

4.125 Inch

Transport Package

Wooden Case

Specification

GM 350 HP

Trademark

XME

Origin

China

HS Code

8409919990

Production Capacity

500000 PCS/Year

Key features

High-Nickel Alloy Material: Proprietary alloy offers 30% higher tensile strength and superior wear resistance.

4-Bolt Main Rigidity: Center journals feature 4-bolt caps for maximum crankshaft stability under high RPM.

4.125 Inch Big Bore: Enlarged bore allows for larger displacement and improved valve airflow efficiency.

CNC Precision Machining: Multi-axis CNC processing ensures perfect alignment, pressure testing, and deck surface.

Flexible Customization: Supports customization from samples, designs, and minor adjustments for specific needs.

ISO Certified Quality: Manufactured in ISO-certified facility with 100% finished product inspection.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceIn-stock Capacity

Xinlong Machinery & Equipment (Zhengzhou) Co., Ltd.

Henan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 20 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤4.36h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company and, in basic company information, as a trading company located in Zhengzhou, China. It reports customization, 3D design, ODM, and recent new-product capabilities, with one production line and listed machinery including drilling, milling, oven, spray booth, core shooting, and shot blasting equipment. Quality control staffing is reported at 21–30 employees, but finished products are checked by packing staff and no supplier-management certification is listed. Service governance is weakly documented: there are no written procedures or records for service assessment or corrective/preventive actions, although a complaint-handling procedure exists without written records. It has exported for 20 years and lists Europe and North America as primary export markets, but reports no overseas warehouse, showroom, agent, branch, or offline trade-show participation. Financial information references multiple years but does not provide sufficient non-financial evidence to...

CertificationsThe supplier’s management-system certification status is explicitly listed as NIL. No certification evidence is provided in the supplied information.

After-Sales capabilityThe supplier has a complaint-handling procedure, but no written records; it also lacks written service-assessment and corrective/preventive-action procedures. It reports no overseas warehouse, showroom, agent, branch, or offline trade-show presence, although it accepts several quotation and payment methods and identifies Qingdao Port as its nearest service location.

R&D capabilityThe supplier reports 3D software design, ODM, multiple forms of customization, and new products during the past year. However, it has no available SDK and reports only one year of total R&D engineer experience, so the overall depth of innovation resources cannot be confirmed.

Production capacityThe supplier lists drilling, oven, spray booth, core shooting, shot blasting, and milling equipment, and reports operating one production line. It also reports 21–30 quality-control staff, but finished products are checked by packing staff, leaving the effectiveness of the stated production and quality-control structure only partially demonstrated.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides 3D software design services, directly supporting a broad customization offering.