Yes mine are old B&M blowers.
Holley is building them again same as mine. Four bolts threw bolted. Good luck on sale. Worth wh at your asking

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Will they fit a Big Block Chevy application?...what year were they manufactured?.....and are these Super Chillers equipped with the "cupronickle" cores/heat exchangers?...thanks

Where are you located

@90viper Located in Ontario.

@Kaama if you tell me what I'm looking for exactly I can you get more details. Off the top of my head I want to say they were purchased 6-8 years ago. Might be older and not used, might be newer. I don't remember the time frame on his original build plan. With the proper intake they should fit a big block. He thought he had them sold to someone with 454's and 250 B&M blowers, guy just went silent.

Kaama they appear to be the same 6 bolt pattern as mine used with Weiand 177 blower On Mercury 525sc. Teague still sells these.

Great price good luck with sale

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Will these work with an 871?