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TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.

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Old 09-13-2006, 07:37 PM   #1
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Intake runner port size on iron L98 heads

Just wondering if someone could tell me what cc the stock heads are. I have cast L98 heas on the car and want a basis for comparison. Thanks all
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Old 09-13-2006, 10:46 PM   #2
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I beleive they are officially about 165cc. In actuality.... never measured them myself.
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Old 09-14-2006, 07:01 PM   #3
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Car: 1989 Camaro IROC-Z
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Axle/Gears: 3.27 BW 9 Bolt PBR Disc

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Thanks! I was curious because I have a set of cnc ported afr 180's and I wanted to know how much better , er bigger, they are than the stock L98 heads.
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Old 09-14-2006, 07:01 PM
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