Ist der L82 aus der C3 ein 2 oder 4 bolt

[Mikey]

So, hier ist die Antwort von einem echten Veteren und Spezialisten aus dem .com Froum zurück. Es möge sich selbst jeder ein Urteil darüber bilden. Wer ´ne Übersetzung benötigt, der möge hier kurz darum bitten, ansonsten verzichte ich drauf.

written by JohnZ (corvetteforum.com)

The 1/8" NPT square-head pipe plug at 11 o'clock just above the timing cover has nothing whatsoever to do with any oil pressure fittings, nor does it have anything to do with 2-bolt vs. 4-bolt configuration. Flint Engine had a different machining process than Tonawanda, and required that hole for gun-drilling an oil passage at the front of the block; the hole was then tapped and the plug was installed. Tonawanda's machining process didn't require the hole, so you won't find it on any Tonawanda blocks.

Urban legends die hard - there are no external indications of any kind that differentiate a 2-bolt from a 4-bolt small-block; the only difference is extra main cap bolt holes in the #2-#3-#4 bulkheads on a 4-bolt - there is no difference at all in the castings - the same castings were used for both - only the machining for the extra six holes was unique.