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my block cracked in my mustang so im thinkin 351 with my trick flow heads would be bad ass

since i live in California it needs to pass smog ,but how would a smog checker know i have a 351 vs my 302 its just a taller deck height do they check casting numbers or something, maby if i got a ford guy he could tell but anyone else wouldnt notice correct?

would the actual sniffer test be much different

btw in cali we have visual inspection and the sniffer test

the only problem i see is if i use the 351 trickflow efi intake that wouldnt be c.a.r.b. legal but coulnt i just give him my 302 streetburner trickflow intake carb numbers they wouldnt be able to tell the diffrence right?

ill be trying to pass smog with a stock 4 cat h-pipe
 

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The bigger difference between the engines is the width. Because the deck is higher on the 351W the heads set farther apart, making the intake considerably wider. Maybe the checker would know that, any maybe he wouldn't.
 
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