1967 plymouth gtx 440 cylinder heads.
Just curious. With all the heads listed that would need modifications in order to be used, except the 915, I don't understand why the 516 head should not be listed, with the only modification of using the correct 1.74 exhaust valve in place of the 1.60 valve it comes with. I'm sure I'm missing something. But it don't make sense to me.
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Re: 1967 plymouth gtx 440 cylinder heads.
The 915 head is far better for stock, the 516 is an earlier head. A superseding head is typically if not always a newer head.
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Re: 1967 plymouth gtx 440 cylinder heads.
Thanks, it was just a little confusing to me.
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Re: 1967 plymouth gtx 440 cylinder heads.
The 915 flows way better in our experience!
You could spend thousands on the 516 and it would not be any better than a virgin 915. |
Re: 1967 plymouth gtx 440 cylinder heads.
Thanks guy's, I didn't know any better. Thought the valve size was the only difference.
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Re: 1967 plymouth gtx 440 cylinder heads.
The 67 GTX 440 is a pretty good combo especially.
with the 49 state 750 Carb. |
Re: 1967 plymouth gtx 440 cylinder heads.
I thought it might be worth a try. Was planning on using the edelbrock 1407 and it will be a stick shift car.
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