i'll check that out.
Hypothetical engine block poll
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From: chicago burbs
Originally Posted by mustange70
...i don't know what those cost offhand...
from the running thread on the ranchero.US page,
http://www.ranchero.us/cgi-bin/ultim...=001252#000006
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From: East Bend, Carolina, U.S
I personally like the 351 C because of the gas mileage that isn't obtainable with any 400 I've ever seen. I would also go as far to challenge any stock 400 to rev to what a stock 351C does with ease and not explode.
Also. with any of these options, what intake manifolds would a person be able to use with the taller decks?
Also. with any of these options, what intake manifolds would a person be able to use with the taller decks?
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From: western montana
Originally Posted by Purely Ford
I personally like the 351 C because of the gas mileage that isn't obtainable with any 400 I've ever seen. I would also go as far to challenge any stock 400 to rev to what a stock 351C does with ease and not explode.
a 400 won't spin but spin isn't a mileage boost I don't think ie get the power down low and gear for it.
just wondering...i have a guy looking for a cleveland build that gets decent mileage.
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From: Sin City, USA
Originally Posted by roger dowty
a 400 won't spin but spin isn't a mileage boost I don't think ie get the power down low and gear for it.
just wondering...i have a guy looking for a cleveland build that gets decent mileage.
just wondering...i have a guy looking for a cleveland build that gets decent mileage.
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From: Delaware
The only reason that a 400 won't spin is due to not being able to get enough air. The air velocity has to increase by 14% to fill a cylinder of a 400 at the same RPM as a 351. Since air velocity can't exceed sonic velocity, and a stock 351C reaches sonic velocity at less than 6000 RPM, a 4000 can only reach 5200 RPM. Extensive porting is necessary to get a 351C-2V to 7000 RPM. A 351C-4V can do it more easily.
A 434 is even harder to get to rev, because it requires 24% more air. My 434 peaked at 5200 RPM with CHI 3V heads and a CHI manifold. Although the intake lobe of my cam is relatively small, the motor would have peaked much higher with 351 cubic inches displacement.
A 434 is even harder to get to rev, because it requires 24% more air. My 434 peaked at 5200 RPM with CHI 3V heads and a CHI manifold. Although the intake lobe of my cam is relatively small, the motor would have peaked much higher with 351 cubic inches displacement.
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From: East Bend, Carolina, U.S
I have a 1972 Torino (351C) and it could get 20 mpg at times when stock with a 2V carburetor.
Maybe I'm wrong, but weren't there more trucks built with 302, 351 Windsors, and inline 6s than 351M and 400 engines? If so, then the 351C would fit in more trucks than a 400 without too much trouble.
Maybe I'm wrong, but weren't there more trucks built with 302, 351 Windsors, and inline 6s than 351M and 400 engines? If so, then the 351C would fit in more trucks than a 400 without too much trouble.
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From: Sin City, USA
Originally Posted by Purely Ford
Maybe I'm wrong, but weren't there more trucks built with 302, 351 Windsors, and inline 6s than 351M and 400 engines? If so, then the 351C would fit in more trucks than a 400 without too much trouble.
BTW, the often hord to find, 400FMX block has the boss locations for drilling the big bellhousing pattern, only the small bell bosses are drilled.
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From: Delaware
Originally Posted by 73XAFalcon
True you are. But a tall deck 400/Cleveland block with dual bellhousing bolt patter and dual mounts would bolt into even more applications.
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From: East Bend, Carolina, U.S
If the block could be designed and manufactured to cover both the windsors bolt patterns, and both 335 patterns, then I would say sure build the 400 block. Also the parts should also be made available to cover the needs of a 351 setup. Not everyone wants to burn more gas and not have the need for the low end torque of a 400. A 351 setup will allow plenty of horsepower, but at a higher rpm, which by the way can be very useful on the roads today. In other words, just use the power and burn lots of gas when needed and not all the time like with a 400.
Are there many 4V intake manifolds available for the taller deck 351M/400 engines? I know that there weren't any factory 4v intakes made in at least the United States for the 351M/400.
Are there many 4V intake manifolds available for the taller deck 351M/400 engines? I know that there weren't any factory 4v intakes made in at least the United States for the 351M/400.
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From: chicago burbs
the 335 series uses both bell patterns of the Windsor/90* V family and the 385 series.
the 302C and 351C use the smaller pattern of the Windsor/90*V family, and the 351M/400 uses the larger pattern of the 385 series family.
the 302C and 351C use the smaller pattern of the Windsor/90*V family, and the 351M/400 uses the larger pattern of the 385 series family.
Last edited by grclark351; Mar 31, 2007 at 01:37 AM.
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From: western montana
regarding mi8leage again...20 mpg in a heavy car is ok but I think the 400 when properly built and geared would do better in both a truck and a heavy car. Wondering what your C would have done mileage wise in a brick (truck).
I'll be putting a properly built 400 in a 70 torino bodied 70.5 falcon. I'll try to get the funds for a under/over drive and put the right gears in it and see what we can get from it mileage wise. I know it's going to move pretty good. It will have the aussie heads and all of tims goodies.
I'll be putting a properly built 400 in a 70 torino bodied 70.5 falcon. I'll try to get the funds for a under/over drive and put the right gears in it and see what we can get from it mileage wise. I know it's going to move pretty good. It will have the aussie heads and all of tims goodies.
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From: Sin City, USA
Originally Posted by grclark351
the 335 series uses both bell patterns of the Windsor/90* V family and the 385 series.
the 302C and 351C use the smaller pattern of the Windsor/90*V family, and the 351M/400 uses the larger pattern of the 385 series family.
the 302C and 351C use the smaller pattern of the Windsor/90*V family, and the 351M/400 uses the larger pattern of the 385 series family.
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From: Sin City, USA
Originally Posted by Purely Ford
Are there many 4V intake manifolds available for the taller deck 351M/400 engines? I know that there weren't any factory 4v intakes made in at least the United States for the 351M/400.
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