Factory Thermostat Housing Bolts?

[dibbons]

The bolts I found on the 340 I purchased have no built-in washer, captive washer, or lock washer (just a regular bolt with some orange paint on the bolt head). I was just curious what type of fastener the factory used originally on the thermostat housing? Something tells me there must of been some kind of washer. Thank you.

 

[Cuda Al]

They are just a regular head bolt, no flange, no captive washer, no washer. The should have a nylon slug for locking and a H on the head.


Alan

 

[niceolddart]

Don't forget to put pipe dope/thread sealant on them when installing, they go into the water jacket.

 

[Dana67Dart]

Don't forget to put pipe dope/thread sealant on them when installing, they go into the water jacket

Not on all intakes, 67 2 BBL they are flat bottomed and can build up enough junk to prevent the bolt from tightening properly