350 chev engine numbers

Denzo196971

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Jul 24, 2019
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Car
1971 Camaro
This is the number at the front of the engine
v0516ARH
Flint MI may 16 ARH?
Rear VIN 14093638
The engine has alloy heads and was told it was a ZZ4
Thanks for any help
 

63Half-ton461

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Nov 18, 2019
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Car
1978 Monte Carlo 383 slammed
ZZ4 is a crate motor, 638 is a common one piece rear main seal block, 2 or 4 bolt main. How do they stamp crate motors anyway ? is ARH a crate motor code ?
 

63Half-ton461

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Nov 18, 2019
Messages
85
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Car
1978 Monte Carlo 383 slammed
If that motor has never been apart and it has the L98 vette 113 heads on it, then it will very likely be a ZZ4, or an actual L98 vette motor ? Was/is it Fi or carb ? Does it have a factory roller cam ? you can tell if you pull a valve cover and look down past the push rods .... you can check the casting # on the head while your at it .
 

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