urgent advice needed on 25hp manifolds

[wolfsburgvw]

have a 51 and the original manifold is leaking between the thin pipe and the larger one,i have a nos 30hp manifold which looks the same,it has the small aluminium section just like mine on the 25hp,are they the same can anyone advice on this,as im going to change this tommorow,thanks steve

[crotchsplit]

i'd suggest having a reputable restorer fix your original manifold. ZARWERKS is great at those repairs. original is always better.

[wolfsburgvw]

i agree,but if the nos 30hp is the same as my 51 then that will do untill i can get my original fixed,steve.

[VDubMattStuart]

No it is't the same. I think your car should have a K manifold, not something that looks like a 1192cc manifold. However, if your really not concerned about stock appearence, the 1192cc manifold will fit. I ruin one on my 25hp motor.

Indeed though, if you want an original, or if you have an original you need fixed—Zarwerks.
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53 oval hardtop

[wolfsburgvw]

so what is a k manifold,as to the untrained eye they do look the same,steve.

[Wiggy]

[Dave Haviland]

If you're looking straight down on it, it resembles a K. Both heatrisers are straight until they bend down to the exhaust manifold. 30s curve a little and are shorter.
Also, 30s have larger intakes at the head. They will have to be machined down to fit 25 horse heads.
John Henry will probably send you a picture of the K manifold.

Dave

[johnshenry]

The pics above show the K, the jacketed and unjacketed. The jacketed K manifold has no VW part number on the jacket.

I can replace the heat riser legs on the jacketed Ks. Pics of that operation at zarwerks.com
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John Henry

'57 Deluxe
'56 Single Cab

[wolfsburgvw]

the manifold i have is like the top one with the aluminium more to one side,what would this be for then,,as my car is a 1 owner with 45000klms.is it the correct manifold for a 51,steve.

[Wiggy]

[johnshenry]

wolfsburgvw: Does that manifold have a part number on it ending with "701E"? Probably does.

Jacketed Ks have symmetrical aluminum jackets.

JH
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John Henry

'57 Deluxe
'56 Single Cab

[VWwerks]

If you are going to use your 36hp manifold on your 25hp motor you would need to mill down the end castings. It will not fit on a 25hp head as is. You'll have a really big leak Also replace the crush gaskets.

Zarwerks can help you with the necessary machining if needed.

"701" is the replacement 25hp manifold (no milling needed). "701E" is 36hp (needs milling to fit 25hp)

Jim

[wolfsburgvw]

thanks for all the valuble advice,does anyone have the correct manifold for my car then,if so i would like to try to put it back to how it should be,i think i would prefare the jacketed manifold,im looking to get this sorted very soon,so any help apreciated,regards steve.

[RichOakley]

Steve,

I sold a jacketed 'K' two weeks before Xmas to a guy in Japan
They're pretty hard to come by and almost impossible to find in good condition. I know John and Jim have restored quite a number of these in the past and occasionally have one for sale.

Best of luck!
Rich.

[wolfsburgvw]

hi rick happy new year to you,thanks for that,but domyou know if my 51 should definetly have the jacketedk manifold,as ive been on the brezelworks site and it says thay were used on 1950 and earlier,have you any idea,my manifold has the part no 111 129 701E. Has my car got the wrong or correct manifold,steve.

[Wiggy]

[wolfsburgvw]

ok thanks,looks like i need a jacketed k manifold,has anyone tried the repro ones from brezelworks,this looks like my best option it thay are as good as thay seem,steve.

[Wiggy]

[wolfsburgvw]

your correct thanks for that,steve

[johnshenry]