Can a 400 crank fit in a 351 clevo, if it can't would it be because of to much stroke?


82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to have a kick @$$ stereo

 

It will fit , You just have to have the mains turned down to 2.750 for the 3.00 thay are now and have it harden again.

 

Thanks that will save me a lot of money.


82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to have a kick @$$ stereo

 

Not necessarily
First you have to have it ground down and then send it out to have it Nitrated ...

Let me know how it turns out ..

 

I was going to buy a stroker kit and at over 2500$ i think that i might save a little bit one using a 400 crank.

Another question, what rods and pistons would youu use? (i am wanting a set of pop-up pistons)



82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to have a kick @$$ stereo

 

I would test fit one before I put all that money in it. I am not sure that the counter-weights will fit inside the lower case area of the block. I think I read about that with the 351W using the 400 crank, but I'm not sure. It just might fit.

 

I read an article about a guy that did this. He used the 240cid rods with Chevy flat tops. Even after milling the pistons down .100 to get them at 0 deck he wound up with over 300psi (thats all the higher his tester would go) of cylinder pressure. Let me ask ya why use a 351c block and 400 crank? You're only getting 400 cid out of her (4 inch bore 4 inch stroke). Just my opinion but if you want 400cid use the 351m or 400 block. Save your money and spend it on having splayed mains installed and better flowing heads.

Guess my question is what is the appilication your looking at?

 

Its going in the truck described below. The reason i want to use the 351Ceveland is a number of reason. One is if you're trying to sell it what looks more attractive a stroked 351c or a 400? Plus weight is a concern (i know that there isn't a big diff. but i want to keep the total weight under 4000lbs, and the truck weighs 3600lbs, 3900lbs with a custom wood box and sand weights. And how many can say they my kind of truck with a stroked 351clevo? I also like the clevo better, and i also think there's more performance stuff with the clevo.



82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to have a kick @$$ stereo

 

Ok here are the troubles your are going to run into trying to stroke the clevo out.

#1 Has the post above stated you have to turn the cank mains down to the cleveland size and have them renitrated.

#2 Any cam above a .480 lift will need to be custom ground to clear the couter weights on the crank.

#3 The Cleveland has a deck height of 9.206 inches compared to the Windsors 9.500 and the M series 10.215 inches. This means a very short rod (something like the 302's 5.090) and custom pistons.

#4 You'll have to notch the block to clearence the throws of the 400 crank.

#5 The 400 crank will need to be profiled to match the new rods.

#6 Depending on the rod you will need to have it side clearanced

#7 Custom pistons will need be fly cut for valves and clearanced for crank.

Thats the top 7 things I can come up with just off the top of my head. To have this work done by a good machine shop (and you're going to want only the best shop working on this) the cost is going t be around 1,000 in labor alone (just to take off the needed amount to fit the crank into the block journals is going to take around 8-10 hours of machining not to mention the cost of the grinding wheel).

 

OK,
My opinion (not nesicarily correct)
I would NOT stroke that poor defecless old 351 Clevo out to 400 ci, basically because they were not meant to do that.
Stroking it will (as already pointed out) cost a lot an involve cutting away a lot of metal which will weaken the block, and, in the process increase stress an strain on the whole engine. A long stoke is the worst thing in the world if you want to rev, (and the 351 cleveland is a typically fairly high revving engine with several factory clevos capable of 6000 rpm or more stock). If you must have more cubes and rev at the same time (power), go for an engine with bigger pistons.
A long stroke is good for pulling (torque) and if this is what you want go for the 400.
335C

 

One more little thing . . . .
You said a 325 hp 351 clevo? A naturally asperated 351 with a 4 barrel carb, flat tops and headers should have no trouble doing 325. Factory stock they went up to 380 hp.
335C

 

>Can a 400 crank fit in a 351 clevo, if it can't would it be
>because of to much stroke?
>
>
>82' Flareside: zoom zoom doesn't even begin to describe it
>2/4 Drop
>Soon to have 325hp 351 Clevo
>(maybe more,in a 3600lb truck)
>Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
>American Racing AR-23 (series 23) wheels
>Upgraded interior
>Soon to have a kick @$$ stereo

Read carefully and you will note that some of the above posters misread that you were trying to put a 400 crank in a 351W, not the 351C as you wanted. This will change some of the answers.

I don't think you'll recoup your expenses in doing this by wowing someone with 'stroked 351'. You could still say that with a 400 - it is a stroked 351, but done right with raised deck. Throw Aussie heads on it along with 11:1 pistons if you really want to wow them!

 

I am now thinking about using a stroker kit i found from D&D automotive. (377) If you scroll down through the posts i have a detailed description on it. I also want to be able to run it on pump gas to. So i don't want to run high compression ratios. (10:1 or less) the clevo that this cramk would go into is only rated at 165hp from the books i have. I already have a better cam, 750 holley or 650 carter carb. Along with headers and either rework the stock 2V heads or buyy some aussie heeads off of ebay. I was thinking that maybe a stroker crank would really make this motor shine. But now what you guys are saying about it i am starting to think that it might be such a good idea. But keep the ideas coming i am still thinking about it.



82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to have a kick @$$ stereo

 

OK here's a guy that know's how to build a 400 with way to much time on his hands..

http://members.tripod.com/lyc_42/km434/km434.htm


Check it out and remember to wipe the drool off before kissing the wife with a sly grin .

 

Thats a good article, does anyone have an article like that for the 351Clevo?

P.S. i would prefer the clevo cause i like the higher reving motors for preformance reasons.


82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to have a kick @$$ stereo