487X vs. 487 vs 993 SBC Cylinder Heads - CLASS RACER FORUM

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487X vs. 487 vs 993 SBC Cylinder Heads

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02-03-2015, 04:50 PM	#8
njk53 Senior Member Join Date: Jul 2007 Location: East China, MI Posts: 504 Likes: 0 Liked 0 Times in 0 Posts	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? __________________ Nelson Kowal Stock 345

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