B16 head on B18C
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Joined: Apr 2006
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From: Lynchburg, Va
Re: B16 head on B18C
few years back i read stock gsr casting vs b16a casting that the B16a flows it was either 4.75 % more cfm, or 5.75%. i believe it was 4.75 %.... so maybe 5hp. lol but with b16 head dont gotta go buy an aftermarket intake manifold like GSR's do. stock manifold good for HIGH hp.
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