NationMaster - Encyclopedia: GM 2500 engine

The 2500 (or Pontiac 2.5) was a 2.5 L (151 in�) I4 piston engine used in the 1970s by General Motors. It was used in the 1977 Pontiac Astre and 1978-1980 Pontiac Sunbird. It used an iron block and head, pushrods, and had a 4 in (101.6 mm) bore and 3 in (76.2 mm) stroke.

Year	hp (kW)	lb.ft (Nm)
1978	85 (63)	123 (167)
1979	90 (67)	128 (173)
1980	86 (64)	128 (173)

Contents

1 LS6

LS6

The LS6 was a 151 in� (2.5 L) I4 engine produced from 1978 to 1979.

LS8

The LS8 was a 151 in� (2.5 L) I4 engine produced from 1979 to 1979.

LX6

The LX6 was a 151 in� (2.5 L) I4 engine produced from 1977 to 1978.

LX8

The LX8 was a 151 in� (2.5 L) I4 engine produced from 1979 to 1980.

Consumer complaints about General Motors' Plastic Intake Manifold (1142 words)
	I was told that the intake manifold gasket was leaking and that the engine was ingesting anti-freeze and, thus, causing the misfire in the cylinder number 2.
	The service center at Tom Gill GM was aware that this is a problem with the gasket on this particular 3.4L motor.
	I asked Dave (Pontiac Rep) if GM was going to reimburse me for the $735 needed to repair my van since it is obviously a design flaw and the dexcool antifreeze is under scrutiny by experts for causing this problem.

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