Piston Slap or Lifter Tick?
Thread Starter
Joined: Dec 1999
Posts: 1,747
Likes: 26
From: Rugby, England
Car: 1988 IROC Vert
Engine: 355 ZZ4
Transmission: T5 Manual
Piston Slap or Lifter Tick?
This is only 1k miles old. It's a fully forged internals 355. Sometimes, when cold I get this noise. Does it sound like Piston Slap or Lifter to you?
Disappears after a min or so and nothing after
Disappears after a min or so and nothing after
Joined: Nov 2008
Posts: 2,107
Likes: 182
From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: Piston Slap or Lifter Tick?
Yikes that's louder than I thought it'd be. I'd guess lifter/rocker. Piston slap sounds "low" in the block, and from what I've experienced, more of a metal clucking sound. I didn't typo that, I meant cluck.
Supreme Member
Joined: Jan 2004
Posts: 2,322
Likes: 100
From: So. Ohio
Car: 88 Camaro
Engine: L98 350
Transmission: 700r4
Re: Piston Slap or Lifter Tick?
Might short a spark plug wire one at a time and see if the noise goes away on one cylinder or so? Or unplug an injector one at a time. If the noise keeps up it could be a lifter. But first check all exhaust manifold bolts and the spark plugs for tightness. Be surprised how that small leak can sound like something completely different.
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