Head gasket for buick v6, which type?

Maintenance/Repairs
1

1995 buick century, 3.1l V6 time to change the head gasket as im starting to get white coolant smelling exhaust with a tiny whiff of gas missed in as well as rough idle.

there are two different gasket sets available as im trying to figure out which set to get.

First Design; With Ball And Pivot Rocker Arms; Without Push Rod Guides On Intake Gasket

Second Design; With Roller Rocker Arms; With Push Rod Guides On Intake Gasket

any way to know which i need without getting elbow deep into the engine before hand?

perhaps by VIN, 1G4AG55M6S646XXXX

2

Remove the front valve cover and look at the rocker arms.

It’s got to come off anyways.

Tester

1 Like
3

Wouldn’t just be simpler to buy both from a local parts house and return the one you don’t need ? Makes more sense than putting your VIN on an open web site.

4

This is the service bulletin that shows how to identify the type of rocker arm;

https://workshop-manuals.com/chevrolet/corsica/v6-3100_3.1l_vin_m_sfi/engine_cooling_and_exhaust/engine/camshaft_lifters_and_push_rods/rocker_arm_assembly/component_information/technical_service_bulletins/engine_rocker_arm_bolt_tightening_specification_update/page_1747/