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Hydraulic roller lifters

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Old

Jun 20, 2006 | 07:55 PM

#1

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Joined: Apr 2006

Posts: 17

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Hydraulic roller lifters

I am buying a set of new heads, and the machine shop wants to know if I am using a hydraulic roller cam. I would like to use the lt4 hot cam. How do I know if my current car has that without pulling it apart? I have an 89 iroc 5.7L with tpi. I think it has the wrong engine in it. I think it has a tbi engine. Would that ,matter?

Old

Jun 20, 2006 | 08:02 PM

#2

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Joined: Jan 2000

Posts: 20,981

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From: Mercedes Norte, Heredia, Costa Rica

Car: 1984 Z28 Hardtop

Engine: 383 Carb

Transmission: 4L60

Axle/Gears: 3.54 Dana 44

If it's the original engine, it's a roller cam.

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