what 454 is this?

[WILMASBOYL78]

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Before you start pawning off the engine,check to see the dates on the heads and intake.If they are within a month or two before the build date of the car,and he is fairly sure it is a bigblock car,maybe it is the numbers matching top end.I think the 375 hp 396 and the LS6 might have had the same heads and intake,but different camshafts.If the car ate a short blok early on,it could have been replaced with a lower performance one with all the high po stff added on.

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He listed the casting numbers and dates for the heads...one is a 1968 #840 head, so the top end is not original. The LS6 and L78 shared the same #143 camshaft....depending upon how the car is used, it might be cheaper to just leave it alone and drive it.

wilma