Stock L98 113 port sizes?
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Joined: Dec 2023
Posts: 268
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From: Central Texas
Car: 1987 L98 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.27 9 Bolt
Stock L98 113 port sizes?
Does anyone know what the stock height and width of the 113 casting aluminum vette heads is? I looked and searched and didnt come up with anything except here 1.220"x1.929", 2.353 sq in. Which sounds large and these may be in fact, ported. Thanks.
Joined: Jan 2005
Posts: 10,450
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: Stock L98 113 port sizes?
I do not know, but I have a couple of friends about to work on a set of NOS ZZ4 heads. I will ask them to get measurements and the dimensions at the pushrod pinch.
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whoaru99
Tech / General Engine
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Sep 22, 2005 03:10 AM