Thread: SBC identification

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I'm getting conflicting data on the head casting numbers, they are 14014416. According to this source Chevy cylinder head Identification - Small block casting numbers, the chambers are 64cc. Several others are saying 64cc.

Anyone shed any light on this?

If the chambers are indeed 58cc, that really makes my head choices minimal.

Originally Posted by ocezam

I'm getting conflicting data on the head casting numbers, they are 14014416. According to this source Chevy cylinder head Identification - Small block casting numbers, the chambers are 64cc. Several others are saying 64cc.
Anyone shed any light on this?
If the chambers are indeed 58cc, that really makes my head choices minimal.

At 170 hp, I'd bet a nickel the heads are 76cc's stock. If your motor has 14014416 heads on it, then someone in the past has bolted 305 heads onto your 350 to raise the static compression ratio.

Don't worry too much about static compression ratio. Going from 8.0:1 to 9.0:1 gains 4% power. Going from 9.0:1 to 10.0:1 gains another 4% power, and so on. Headers and cam will return way more power than worrying about static compression ratio. But you must know what the static compression ratio is exactly, because you have to match the cam timing to the SCR to have a runner.

Here is some information about matching a camshaft to the static compression ratio of a motor.....
http://www.crankshaftcoalition.com/w..._compatibility

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Originally Posted by techinspector1

If your motor has 14014416 heads on it, then someone in the past has bolted 305 heads onto your 350 to raise the static compression ratio.

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Yeah, that's the conclusion I'm coming to also. It's hard to believe the motor has high compression. Sounds stock. Drives stock.

If I were to put 64cc heads on it. It would lower the current compression which doesn't seem high to me. I was looking forward to bolting on some aftermarket heads but I see no point in it now. It seems like this would lower the compression enough to cancel out the benefits of a performance head.

Suggestions?



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