[DeTomaso] c & m blocks

Steve Hawkins shawkins777 at comcast.net
Wed Aug 11 18:07:17 EDT 2010


I will let you know.  I think the headers for the A3 heads are going to fit.

Steve

-----Original Message-----
From: wkooiman at earthlink.net [mailto:wkooiman at earthlink.net] 
Sent: Wednesday, August 11, 2010 8:39 AM
To: GW; JDeRyke at aol.com
Cc: shawkins777 at comcast.net; detomaso at realbig.com
Subject: Re: [DeTomaso] c & m blocks


Agreed, but why would you do a 400M when you can do a 408C?

Even better, run a Dart or SVO block and do a 9.5" deck Clevor.

The 400M obviously has a better rod angle, and it isn't stroked to 400, so
you don't need a stroker crank, rods, or pistons.  But... does that make up
for the motor mount mods, custom headers, intake spacers, and the difficulty
in finding an FMX block (or running a 385 bellhousing)?

-----Original Message-----
>From: GW <gow2 at rc-tech.net>
>Sent: Aug 10, 2010 10:29 PM
>To: JDeRyke at aol.com
>Cc: shawkins777 at comcast.net, detomaso at realbig.com
>Subject: Re: [DeTomaso] c & m blocks
>
>Uhm, what are you smoking? Comparing a 460 built with aluminum heads,
>intake to a stock 400 out of a truck?
>
>351c weighs stock 550lbs.
>400 STOCK out of a TRUCK weighs 575. 25lbs more.
>460 STOCK weighs 720 freeking lbs! STOCK.
>
>You can't compare a stock truck engine to a hot rod aluminum 
>intake/head
>engine. 500+ easy HP out of a 400 with damn good TQ through out the 
>power curve and have been used many times. With aluminum heads, intake 
>performance parts, etc they shed more then the extra 25lbs!
>
>Stripped down a 400 block IS A STROKED CLEVELAND!
>
>I agree the 460 is an amazing engine. I have seen them stroked to 
>nearly
>600 cubs making close to 900 streatable HP. But they are a bastard 
>engine in a Pantera. I have seen people with 460's and they are all 
>plagued by axle weakness. I have seen 2 break axles on launches form the 
>poor angles required form moving the engines back. They just don't fit 
>right.
>
>The 400 fits in the bay. Some header work, engine mount work but you
>don't have to redesign the whole damn engine bay. I love the 460 but it 
>is an acheleis heal for those who have put one in. They still don't have 
>the room to put the larger heads and such on they make the 900 
>streatable HP.
>
>There are a couple 400's out there. Mine will be soon.
>
>
>
>
>
>
>JDeRyke at aol.com wrote:
>> On Tue 10/08/10 6:05 PM , "Steve Hawkins" shawkins777 at comcast.net 
>> sent:
>>
>>   
>>> This not accurate information. Almost everything on a 351C will swap 
>>> over
>>> to a 400 except the crank, rods, push rods and motor mounts
>>>
>>>     
>> What I said: you will replace everything in & on the (400) engine.
>>
>> I didn't say nothing off a real Cleveland would fit; I said   nothing off

>> the 400 is useful to a performance build-up, except maybe the cast 
>> crank in
>> some cases. 
>>
>> And it sound like you've done exactly that in your build-up, Steve. 
>> Not
>> sure whether the stock Pantera alternator/AC bracket will bolt straight
onto 
>> the taller 400 block or if it also needs an adaption. You can advise us
once 
>> you get the engine set in place. 
>> FWIW, a 460 stroked to 510-550 cubic inches and mildly tuned with with 
>> aluminum SVO heads, alum. intake w/Holley 850 and alum. waterpump puts
out maybe 
>> 650 bhp on 91 octane & weighs 600 lbs: 50 lbs more than a stock 351-C's
550 
>> lbs, according to the Byars Bros who swapped a dozen or so of these. My 
>> chart from Ford's website shows stock 351M and 400M engine ass'ys
weighing 575 
>> lbs; believable given the 1" taller cylinder decks. Cheers- J DeRyke
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>
>
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