Jump to content

Huffaker intake manifolds

Recommended Posts

Those that frequent the series forum may have noticed that i'm building a vapour project with some lovely v8 bits ive been meaning to use for a while.

In short, ive got a 4 pot injection throttle body and a manifold I have (finally) identified today as a Huffaker manifold as fitted to the TR7 V8 rally cars.

From what I have read on the internet about these manifolds, they seem much more suited to a fast road application than being bunged in the front of a series. My plans for the engine was a top end strip + rebuild, new cam shaft, porting heads etc to make a good soild engine, but not a high revving race engine.

I have particular concerns about the water system - the Huffaker manifold isn't heated in any way and doesn't have any kind of thermostat. I'm happy fitting an external one, but will I suffer without the manifold being heated?

So is it worth selling the Huffaker and getting something else more suitable? Or bung it on with a fast road cam and have some tyre smoking, boy racer whopping, hot rod stylee fun? :D I'm a little apprehensive of this whole racey engine thing...seems a little too grown up for me!

Link to comment
Share on other sites


Yes thats a "Huffy" (Huffaker), and is a 100% race application piece of kit.

These are as you have identified unwatercooled, not even a themostat housing, and no real way of modifying, so on a road engine this will be a REAL PITFA and outdo the plus points, which are that as a big single plane manifold, which has straight manifold runners to the inlet ports than the more comonly used (and street friendly) "Offy" (Offenhauser), the Huffy is also much taller assemble than the offy, and thats tight when fitted with a 4 barrel (ask me how I know :lol:), I do know a huffy would bnot have gone under the 90s bonnet

However, both the Offys and Huffys are designed for mainly Holley four barrels of one cfm or another, and the bad news is even with my very poor memory the TR8s used a selection of carbs in their racing lifes 40 and 48 DCOEs, Quad Side webbers and some truly dreadful early EFI systems that were frankly hopeless, none were fitted with throttle bodies as std, as as such I am 99% certain that the Huffy Manifold you have has been modified to take them, as a holley would I think now not fit those studs ?

For a road motor I would say forget ti the non water jacket will outweigh IMHO the pros, sell the unit to a race enthusiast, and go Offy route if you have to, or efi



Link to comment
Share on other sites

My plans for the engine was a top end strip + rebuild, new cam shaft, porting heads etc to make a good soild engine, but not a high revving race engine.

Good plan but it depends on what the bottom end is like ………………….

New cam & lifters will want good oil pressure to survive for any length if time……….. porting will increase the stress on the bottom end ………………. .

Generally if the top end is well worn ………….. then the bottom end is also long past its best …………..

Best to take it on the chin and start at the sump and finish at the rocker covers ……..

BTW: You will find that Huffy very difficult to live with the sort of use express in LR terms …………… in fact as a everyday road car you would find it hard to live with………however, its still not as finicky as a boxer manifold supporting 4 SU’s ….yuk…….but still in the same league……………

I think I would be inclined to part with it on Ebay and use the proceeds to rebuild the engine ............... that particular Huffy should fetch a good price.....



Link to comment
Share on other sites

  • 4 months later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy