7.4L/454 C.I.D. GM Longblock (425 Hp) (#12568774)

Category Menu

PRICE: $6,595.00

Part #: 12568774

Quantity:

**No core required**

There are various changes that were made on the 7.4L/8.2L engine throughout the years. Listed below is a link that will assist you in choosing the correct longblock for you application.Technical Tips.

425 Hp @ 5250 Rpm and 500 Ft-Lbs @ 3250 Rpm

Product Specifications:

Type: 90° 7.4L V8

Displacement:454 cid(7441.06cc)

Compression Ratio: 8.75:1

Valve Configuration: Pushrod

Actuated Overhead Canted Valves

Valve Lifters: Hydraulic Roller

Bore x Stroke: 4.25x 4.00in (107.95x101.60mm)

Main Bearing Caps:4-Bolt Cast Iron

Balance Method: External

Horsepower: 425 hp

Materials:

Block: Cast Iron

Cylinder Head: Small Rectangular Port

Intake Manifold: Optional Part

Crankshaft: Forged Steel

Camshaft: Roller .510/.540 lift

Valve Cover: Color Black/Ribbed

Firing Order: 1-8-4-3-6-5-7-2

Oil Pan Capacity: 8qt

Fuel Types: Gasoline (unleaded)

Engine Rotation: Clockwise (from the front)

Paint Protection: Component Painted

Shipping Weight: 630lb (286 kg)

Correction to ISO 3046/SAE J1228. Actual power levels may vary depending on OEM calibration and application.

All specifications, availability, and pricing listed are based on the latest product information available at the time of publication.The right is reserved to make changes at any time without notice.

For more details about product installation, select the following link for details. Engine Installation Information….

Includes an Up to 12 month limited warranty.

Request More Information On This Product

Fields marked with * are required

First Name*
Last Name*
Phone
Email*

Additional Comments*

How to Find Your Serial #

Technical Specifications

Overview

Need Assistance?
Contact Us Today!
sales@ishopboating.com
techsupport@ishopboating.com

Boat Shop

Category Menu