GMC 98ci Specs: 3.138 x 3.154 in

GMC 98ci specs: 3.138 x 3.154 in (79.7 x 80.1 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.

At a glance

Displacement98 ci
Cylinders4
Bore3.138"
Stroke3.154"
Years2018–2019

This engine

EngineDisplacementBore × StrokeCRHP
LH798 ci3.1378" × 3.1535"——

Factory cars with a GMC 98ci

What varies across the family

This family is represented by a single engine in the database: 98 ci, 4 cylinders, a 3.1378" × 3.1535" bore and stroke.

Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.

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