Mopar B body HP manifold Downpipes

• Oct 20, 2020

• #1

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NWchuck

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I purchased a set of 1971 Big block mopar HP manifolds. I want to use them on my 1966 Plymouth Belvedere Wagon and need to find a set of down pipes that will accommodate the extreme out angle of these later model big block manifolds. No luck finding These yet.. Need soon to do camshaft break in.. See Instagram Chukwgn.

 

• Oct 20, 2020

• #2

BeepBeepRR

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TTI makes downpipes. https://ttiexhaust.com/Classics_ExhaustComponents.htm#EP

Also this site sells TTI downpipes In 2.5 or 3.0
https://www.bouchillonperformance.com/inc/sdetail/10907

 

• Oct 20, 2020

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1 Wild R/T

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Post a picture... Did you get the B & E body manifolds? Or a drivers side C body? Cause the only one with a severe angle is the C body....

 

• Oct 21, 2020

• #4

Big Bad Dad

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TTI makes them to fit the manifolds. They need the casting numbers so the flanges will be oriented in the right directions. I did this to my 64 Plymouth, and the fit was perfect.

 

• Oct 21, 2020

• #5

turbo36

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Another vote for TTI. Perfect fit for my 65 Bell with HP manifolds.

 

• Oct 21, 2020

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R413

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IF you have b-body manifolds they are the same 1970-1971, then buy pipes for a 1970 b-body Plymouth and they will fit great since the floors are the same 66-70.

I’ve bought Accurate exhaust and it is a perfect fit since they copied NOS pipes. GTX with tips and it’s marvelous!

You can install these yourself without a hoist. Drive the car on 3” blocks and remove the starter. Put it on with clamps loose and get it sitting right then tighten it all up. No labor $$ to the exhaust shop to screw it up.

if you have a c-body drives side manifold forget it, won’t fit your car.

 

Last edited: Oct 21, 2020

• Oct 21, 2020

• #7

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andyf

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NWchuck said:

I purchased a set of 1971 Big block mopar HP manifolds. I want to use them on my 1966 Plymouth Belvedere Wagon and need to find a set of down pipes that will accommodate the extreme out angle of these later model big block manifolds. No luck finding These yet.. Need soon to do camshaft break in.. See Instagram Chukwgn.

Click to expand...

Just have some made if you can't find what you want.