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Old 11-01-2004, 19:56   #1 (permalink)
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Spacer kit for 351C to 400C

Hello to all on the forum.
As many of you are aware, I am going to transplant a 400C into my XD. I have a Weiand X-celerator single plane manifold on the 351C. I would like to use the same manifold on the 400C but will need a spacer kit to account for the extra width of the Taller 400C block. I believe Weiand make a spacer kit for this purpose but getting no joy so far.
Has anyone else managed to get the spacer kit (Weiand PN 8205)? If you could tell me where you found the kit. I would be very grateful.
Cheers
Craig
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Old 11-02-2004, 03:25   #2 (permalink)
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Re: Spacer kit for 351C to 400C

hi, i have a set, they cost me $330 plus freight from western aust, i will lend them to anyone in return for a couple of sets. when you buy them, they require a lot of port matching, as they are quite crap. if you want to see them, do it soon, as they will be going back in soon.
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Old 11-05-2004, 01:43   #3 (permalink)
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Re: Spacer kit for 351C to 400C

Couldn't you just make some ? 351's and 400's are both 90 degree V8's aren't they?.
I did just that for my 351 windsor with clevo heads, to allow me to use the clevo manifold. It worked out to be 10mm Alum plate. All I did was took the plates (cut to size) to the local engineering shop with the 4V gaskets and got 'em to lazer cut the port holes out. $120 bucks off memory. They could also mill it, or drill it, if they didn't have a laser cutter.
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Old 11-05-2004, 14:30   #4 (permalink)
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Re: Spacer kit for 351C to 400C

Hello Buzz and Crushu F150.
Sorry it has taken so long to answer the post.
I have managed to get a set of Weiand spacers to adapt a 351 Cleveland manifold to the 400C from the US.
Thanks again for your advice and offers.
Cheers
Craig
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Old 11-16-2004, 08:31   #5 (permalink)
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Re: Spacer kit for 351C to 400C

Is this what you're after? Says 400M though. Not too sure of differences.

http://cgi.ebay.com/ebaymotors/ws/eB...934522338&rd=1



** Woops, didn't see you'd already bought some.
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Last edited by TruBlu351; 11-16-2004 at 08:33. Reason: **Extra Info
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Old 11-16-2004, 18:00   #6 (permalink)
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Re: Spacer kit for 351C to 400C

kionga how much did u pay ??? Summit had em for $110 USD + $50 USD freight ???
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Old 11-17-2004, 03:44   #7 (permalink)
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Re: Spacer kit for 351C to 400C

Hello TruBlu351 and Clevo400.
Yes TruBlu351, that is the same spacer kit.
Cleve400, how current is your information? I checked several weeks ago and Summit stated that the spacer kit was a discontinued line. Several other parts retailers state the same thing. I don't think Weiand are making them anymore-although their web site still features the adapter plates.
Price motorsports in the US sell a similar set of adapter plates but they are at least $250 US!
Thanks again.
Craig
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Old 11-17-2004, 17:50   #8 (permalink)
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Re: Spacer kit for 351C to 400C

SORRY, I now deal with a company called JEGS who stock them in their catalogue at $109 USD (JEGS similar to Summit). Look them up. They price match Summit on everything. Their catalogue is usually $1 cheaper than SUmmit for starters. U r correct Summit said they would order me on in but at $50 USD freight I went elsewhere who had them in stock.
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Old 11-17-2004, 17:56   #9 (permalink)
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Re: Spacer kit for 351C to 400C

PME come with the valley plate at $250 USD but not really required !!!
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Old 11-17-2004, 19:25   #10 (permalink)
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Re: Spacer kit for 351C to 400C

Quote:
Originally Posted by TruBlu351
Is this what you're after? Says 400M though. Not too sure of differences.
As we all know, there is no such thing as a 400M or, for that matter, a 400C. There is only the 400.

The reason for manifold matching is because of the days of the 4bbl intakes that were only available on the 4V 351C and then, later were followed by off-the-shelf 4bbl intakes for 400s. The very small ports of the 400 cylinder heads were appropriate reasons for making the spacer ports small.

The best thing for a 400 is a good set of large valve 2V or 4V heads combined with a good manifold like a Strip Dominator and a 750+ CFM carburetor and a stout flat tappet or mechanical roller camshaft, flat tops and reconditioned internals with ARP studs on the heads, mains and ARP rod bolts. A good addition is a set of 4340 I-beams to get the crank around a bit easier.

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