[DeTomaso] c & m blocks
Steve Hawkins
shawkins777 at comcast.net
Wed Aug 11 18:11:30 EDT 2010
I bet it had enough torque to pull the ass end off an elephant.
Steve
-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Kirby Schrader
Sent: Wednesday, August 11, 2010 9:59 AM
To: GW
Cc: Pantera List
Subject: Re: [DeTomaso] c & m blocks
Yes... I got into an argument over this years ago when I had a 1979 Bronco
with a 351M and put a Shelby Spearco turbo on it.
To me, it was a 351M and when it was turned it into a 400 with a different
crankshaft and lower compression pistons, I was convinced it was a 400M.
I lost the argument....
:-)
Wish I still had that truck.... Although it was a 'pull through' the carb
setup, I could get 22 lbs of boost out of it with water injection.
Trouble was... head gaskets suffered accordingly...
FWIW,
Kirby
On Wed, Aug 11, 2010 at 10:12, GW <gow2 at rc-tech.net> wrote:
> By the way there is no "400M". Its a 400 or a 351M (modified,
> destroked 400).
>
>
>
> wkooiman at earthlink.net wrote:
>> 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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