Carrier Stainless Exhaust downpipes

[Lynn Eades]

I think the question you are asking is:
Are the exhaust manifolds interchangeable between the 21 and 24 stud motors? and I think the answer is yes. I believe the manifolds pictured below fit both engines.

[kevin powles]

Hi Lynn, Thanks for the info, I also need to know that you can take the same down pipe from a 21 stud engine and fit it to a 24 stud and both will align correctly between the manifold and the bottom casting hole mounted on the carrier floor plate.

Thanks Kevin.

[Lynn Eades]

Basically I think when Henry redesigned his block to seal better (24 stud) he never moved the exhaust ports. So I believe they have stayed the same throughout the production of the flathead.

[RichardT10829]

Kevin quick way to check for sure is your parts book as there would be two sets of downpipes listed for different engines but as Lynn has said i dont think they changed the cast work between blocks (externally)

[kevin powles]

Hi, Regarding the manufacture of the carrier downpipes, We hit a snag whilst making the downpipes yesterday. I decided to complete the manufacture of 10 lefthand downpipes, but the right hand ones will need to be completed after christmas now due to alignment anomalies

Its pretty clear a 21 stud block exhaust manifold is the same as a 24 stud now, but I plan to phsically check this before sending out any downpipes, so I am now ordering enough parts to make an extra 3 sets.

If anyone wants a set there are now 3 sets going spare, on this run i will have to buy the flanges in stainless to save time.

They will be £60 a set.

the following people have a set already coming; jordan, ben, ross.

thanks kev.

[shaun]

Kevin, good to see you yesterday , tweeked the o/s pipe and got it on in the end, the n/s os spot on. the whole exhaust system sounds perfect ! well done mate.