Crankcase hole size

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Mar 3, 2004 | 09:40 PM

Zrated83

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From: Buckley AFB, CO / Crestview, FL

Car: 83 Z-28

Engine: LG4

Transmission: 700R4

Axle/Gears: 02 WS6 Rear w/3:42

Crankcase hole size

What size is the crankcase hole? The tube that has the rectangular filter attached to it. I got an open element and want to put a push in breather filter in the hole in place of the tube.

Mike

Mar 4, 2004 | 11:48 AM

Stekman

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From: Grand Rapids, MI

Car: Z28

Engine: Sb2.2 406

Transmission: Jerico 4 speed

Axle/Gears: Ford 9" 3.60

Most aftermarket holes are 1.25" but whats wrong with a PCV?

Mar 4, 2004 | 12:45 PM

five7kid

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From: Littleton, CO USA

Car: 82 Berlinetta/57 Bel Air

Engine: L92/LQ4 (both w/4" stroke)

Transmission: 4L80E/4L80E

Axle/Gears: 12B-3.73/9"-3.89

I believe Mike is referring to the air intake/breather pipe on the passenger side air cleaner.

It's slightly larger than the PCV valve, IIRC. 3/4". Breather caps that size are harder to come by.