case question

[turb067]

how do you know if a case is dual relief. are all as41 cases dual relief?

[JCquick]

2 oil pressure releif valve plugs 1 at the front(flywheel end) and 1 ant the rear (pully end) all have the one at the pully end

[turb067]

are the both called AS41's?

[bo]

no sir an as41 is just dual relief. i know for sure that an h case is single relief but not sure if any others are single relief.

[turb067]

just tryin to figure this out. i havent seent he engine in person. the guy i may be buying it from just said it says as41. i dont think he knows what dual relief is. nor did i till now. either way i dont hav a way of looking at it. and its not really worth buying if its not dual relief although its better than my 1500 single port since i cant really build the engine i have now to much larger