CC of stock heads?
06-08-2012, 07:16 PM
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Car: 1986 Firebird
Engine: 5.0L V8
Transmission: T-5
Axle/Gears: 2.73
CC of stock heads?
I'm just wondering what the cc is on a cast iron stock 305 head so I can compare it to an aftermarket one. Namely trickflows. I was told 175 would not cut it for a 350... but would they work for a 305?
06-09-2012, 10:31 AM
#2
Re: CC of stock heads?
Intake runner volume? Stock heads are as low as the 150s for a 350, and even the stock aluminum L98 heads were only in the low 160s. If you are planning to run EFI or carb on the street, the smaller runners are acceptable. If you are going to the track and will see much higher RPM you might want more volume, but you'll also need a lot more gear.
06-09-2012, 10:41 AM
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Car: 1986 Firebird
Engine: 5.0L V8
Transmission: T-5
Axle/Gears: 2.73
Re: CC of stock heads?
the combustion chamber on the trickflow 175's is 56, do you know what the cast iron heads were?
06-10-2012, 09:53 PM
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Car: 1986 Firebird
Engine: 5.0L V8
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Axle/Gears: 2.73
Re: CC of stock heads?
would trickflow 175's be too big for the 305? or would it just make it breathe easier
06-11-2012, 12:19 AM
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Car: 1986 Firebird
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Re: CC of stock heads?
interesting... must do further investigation.... Don't have the tools to though 
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