[FOR SALE] 340 MANIFOLD SALE

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Treblig

Treblig

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I have a few 340 manifolds for sale from Corpus Christi, Texas. These are the 1 7/8" exit hole passenger 340 manifolds used on the 70s 340 A bodies except the one silver one (on top of pic) which is a B body 340 driver's manifold. The ones with functioning heat riser go for $125, without riser $110. First come first served!! All prices plus shipping.


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treblig
 
I know that you bore the 360 magnum manifolds out to 2 1/4", how much do you think you could bore these manifolds? Or do you not recommend doing that?
 
Mike 340 said:
I know that you bore the 360 magnum manifolds out to 2 1/4", how much do you think you could bore these manifolds? Or do you not recommend doing that?
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I've been asked that question many, many times. I've measured the 1 7/8" manifolds and came to the conclusion that the most I could comfortably remove is about 1/16"- 1/8" which is hardly worth the trouble. So maybe out to 2" max but I couldn't guarantee it since I've never tested one. I'm sure some material can be removed but the big difference is in the casting thickness. The 360 magnum manifolds are over-engineered so there's plenty of material in this area.

treblig
 
No problem! The more questions that get asked the more everyone will know about these manifolds.

Treblig
 
Do you have one with a good heat riser with a 71 casting date?
 
Yes, I have 2. One is 9-8-71 and the other is 8-2-71. Both have good heat risers. Would you like to see some pics (close up)??.

treblig
 
Production date on car 8/71. Was hoping for something a little earlier. Can you show a close up of 8/2/71?
 
Here are the pics you requested. The manifold is in good shape and the heat riser is free, it rotates and returns very smoothly. It's missing the tension spring but I can take one off one of the other manifolds I have.

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Treblig
 
Doner says, "You can't beat 340 exhaust manifolds for stocking stuffers, SELL THOSE MANIFOLDS"!!!!

treblig
 
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I am looking for a 3418621 manifold do you have anything dated prior to 4-30-71 or just the 72 manifold
 
I have two (2) '71 manifolds. The first 3 pics are the 9-8-71. The next pics are the 8-2-71, then a pic of both manifolds.
more pics upon request:

treblig



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