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02-03-2015, 04:50 PM
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#1 |
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Senior Member
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Location: East China, MI
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Re: 487X vs. 487 vs 993 SBC Cylinder Heads
If 487X, 487, & 993 share similar air flow capacity, in your opinion which casting is the best choice regarding casting integrity (robustness), resistance to cracks, core shift, etc. is the best of the bunch?
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Nelson Kowal Stock 345 |
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02-03-2015, 05:23 PM
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#2 |
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VIP Member
Join Date: Dec 2001
Location: Arkansas - In the middle of everything.
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Re: 487X vs. 487 vs 993 SBC Cylinder Heads
Flip a coin.
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02-03-2015, 08:31 PM
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#3 |
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Re: 487X vs. 487 vs 993 SBC Cylinder Heads
I've run all three on my Nova.If each set was done exactly alike I don't think there is a hoot of difference in any of them.The book say's the 487 has more intake port volume but the best I have run was with the 993's.Hope this helps.
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Bill Bogues 4696 STK |
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02-04-2015, 09:42 AM
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Re: 487X vs. 487 vs 993 SBC Cylinder Heads
Thank you all for the replies.
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Nelson Kowal Stock 345 |
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