
Installed on Chevy 305 with Weiand 8125. Dry o-ring at first but leaked before pressure started. Took it off and installed wet with an o-ring and black silicone sealant. It made a seal, but the hull itself failed after the engine reached operating temperature and coolant spurted all over the engine bay and fender. Don't buy a flimsy, flimsy aluminum casting. Looks good, good chrome, failed immediately.

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