New GM Longblock - 7.4L, 310/330hp MPI Applications 1996 & Newer (#74310G6WRC)

Alternate Lower Cost Engine Option - 454 Longblock

There were various changes 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 your application.Technical Tips. This NEW G.M. service longblock is the replacement engine for 330 Hp 1987 - 2002 models with the single piece main seal and oval port heads. The 330 Hp rating was an advertised number not the actual produced power number. Engine comes complete with cast aluminum valve covers, an 8 quart oil pan, composite timing cover, and harmonic balancer. However it does not include the intake manifold, water pump, or flywheel. 

Note: There is no provision for mechanical fuel pump, electric fuel pump must be used

IMPORTANT: If you are replacing a 1996 or older "NON-ROLLER" engine you will be required to change out your distributor gear to the melonized version. There are 2 different options available depending on the diameter of your distributor shaft; 1) p/n 10456413 .491 ID or 2) p/n 10493532 .427 ID

Product Specifications:

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

Includes an Up to 12 month limited warranty.

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.

 

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