why is this 351w bolted on to a C6 [Archive] - FSB Forums

: why is this 351w bolted on to a C6


bigsal51
04-20-2005, 12:18 PM
THE 351W i found is bolted on to a c6 trans on a 68 ford f-100 that came with a 460 and thy swaped it with the windsor. wont that 351w bolt to my 351m trans c6. I am confused. or did they make a 351 w that bolted on to a big block bell housing

SSgtTEX
04-20-2005, 12:24 PM
my 88 has a 351W and a C6

appy
04-20-2005, 12:26 PM
they must've changed the tranny to, cause a big block c-6 aint gonna go on a small block without a lot of grindin and cussin

bigsal51
04-20-2005, 12:28 PM
so do you think it will bolt on to my 81 and swap with my 351m

appy
04-20-2005, 12:51 PM
i dont know if the W and M engines have the same bolt pattern or not

RTM
04-20-2005, 01:52 PM
The W and M are two different animals. The W is a small block pattern and the M is a BB pattern.

DogFuzz
04-20-2005, 01:57 PM
There are two types of C-6s as well. One for the W, and one for the M. Or big block and small block, but those are really misnomers.

DogFuzz
04-20-2005, 02:01 PM
More info on the 351M

http://home.earthlink.net/~bubbaf250/index.html

Gacknar
04-20-2005, 02:04 PM
why is this 351w bolted on to a C6 You ask why would it be.
I ask you, why wouldnt it be?

Agily00
04-20-2005, 02:46 PM
You ask why would it be.
I ask you, why wouldnt it be?
Such depth! :toothless

Chuck
04-20-2005, 02:52 PM
-- No, that 351W will not bolt onto your 351M C6.
-- No, all 351W engines used the 351W bellhousing pattern, shared by the 302, 289, 351C, and 300-I6.
-- Your C6 uses a pattern shared by the 351M/400M (same engine block), and 429/460.

If you want to swap from an M engine to one of the small blocks I listed, you'll have to change your transmission.

DogFuzz
04-20-2005, 02:54 PM
THE 351W i found is bolted on to a c6 trans on a 68 ford f-100 that came with a 460 and thy swaped it with the windsor. wont that 351w bolt to my 351m trans c6. I am confused. or did they make a 351 w that bolted on to a big block bell housing
Is someone telling you it's a Windsor, or have you looked for yourself?

The 351 Windsor has 6 valve cover bolts, and the 351M 351C both have 8 bolts. There are more differences, but those are the quickest to spot.

RTM
04-20-2005, 04:12 PM
-- No, that 351W will not bolt onto your 351M C6.
-- No, all 351W engines used the 351W bellhousing pattern, shared by the 302, 289, and 300-I6.
-- Your C6 uses a pattern shared by the 351C, 351M/400M (same engine block), and 429/460.

If you want to swap from an M engine to one of the small blocks I listed, you'll have to change your transmission.

Correction. The 351C has a small block pattern.

bigsal51
04-20-2005, 05:23 PM
so there is two different trans c6. so i dont buy this engine.
if i am going to fix my engine where do i find a good combo
cam, head, intake, carb. even a used intake and carb would be
good for me. i need direction.

Bluebeast
04-20-2005, 05:28 PM
you need to

http://www.mustangevolution.com/forum/images/smilies/gotsearch.gif

DogFuzz
04-20-2005, 06:00 PM
so there is two different trans c6. so i dont buy this engine.
if i am going to fix my engine where do i find a good combo
cam, head, intake, carb. even a used intake and carb would be
good for me. i need direction.

First, you need to find out what's wrong with it. Unless there's more than the overheating problem you've mentioned, it doesn't sound as drastic as you make it sound.

bigsal51
04-20-2005, 06:44 PM
what can i do to check if the engine will take a few modifications. i know i have to fix the overheating problem first and i am going to buy a radiator in a few days. but what else do i have to do first to make sure that the engine can take it.

Tomh971
04-20-2005, 11:28 PM
351C, 351M/400M (same engine block)

The only thing the "M" and "C" share are heads... the blocks are two diferent animals... A Cleveland WILL NOT bolt to a "M" tranny... I tried, and in process was informed that the "M" shared the 429/460 tranny, while the "C" would bolt to a 302/351W tranny... When I had my 79 Bronco, the 351M had a serious bottom end knock, so I pulled the Cleveland from my 72 Torino and wanted to put it in the bronco... wouldn't even line up... But I was able to bolt a 351W into the Torino...

:shrug

oldtanker
04-21-2005, 09:03 AM
With the book in hand check both the compression and oil pressure. If both are good you can do just about any bolton mods you want to include cam/lifter upgrades. As long as it runs/turns over (with no large holes in the block) you can do the other mods that require a machien shop.

As far as the 351W w/C6 you found...you can take both trannies down and rebuild the one for the W using the parts you need like the tail shaft to fit your aplication.

Chuck
04-21-2005, 01:18 PM
Correction. The 351C has a small block pattern.
Thanks -- corrected that in my original post to avoid confusion to others. Unlike most of the other engines mentioned, I've never directly dealt with a Cleveland, and was misinformed.

The only thing the "M" and "C" share are heads... the blocks are two diferent animals...
Sorry if that wasn't clear -- I wasn't trying to imply that the Cleveland and M blocks were the same (or similar), though I was in error in listing the Cleveland with the big-block bellhousing pattern. There are in fact some significant differences between the C and M even aside from bellhousing pattern -- they have very different main journal sizes, for one.

What I originally meant by that arrangement was that the 351M and 400M are the same block. They're very oddly put together -- they actually share everything except crank and pistons. The really weird part is the fact that they share the same rods, and the engineers made up the difference by using pistons with a VERY tall compression height in the 351M. Don't ask me why. Definitely not the way I would've designed it.

pickleweasel
04-22-2005, 12:26 AM
There are two types of C-6s as well. One for the W, and one for the M. Or big block and small block, but those are really misnomers.
actually, there are three. You forgot the FE bolt pattern

cr69ml
04-22-2005, 07:05 PM
Small block on the left 6 inch center top bolt to top bolt
Big block pattern on the right 7 3/4 inches top bolt to top bolt

http://www.supermotors.org/getfile/198418/fullsize/100_1942.JPG

Tomh971
04-22-2005, 10:44 PM
Sorry if that wasn't clear -- I wasn't trying to imply that the Cleveland and M blocks were the same (or similar), though I was in error in listing the Cleveland with the big-block bellhousing pattern. There are in fact some significant differences between the C and M even aside from bellhousing pattern -- they have very different main journal sizes, for one.

What I originally meant by that arrangement was that the 351M and 400M are the same block. They're very oddly put together -- they actually share everything except crank and pistons. The really weird part is the fact that they share the same rods, and the engineers made up the difference by using pistons with a VERY tall compression height in the 351M. Don't ask me why. Definitely not the way I would've designed it.

:thumbup Not a problem man... :beer

Just as long as we keep the person who asked the question THOROUGHLY confused for as long as we possiby can!!! :wacko :histerica :wacko :histerica :chili: :clap

jopes
04-22-2005, 11:50 PM
didja know you can use 351C pistons on a 400 crank with a little machine work?

bigsal51
04-24-2005, 10:02 PM
well guys you have been alot of help. I can now die in piece and not buy the engine i wanted so bad. now it is up to me to mod my own engine and yes i have been confused for the last few days. If it wasnt for your helpful pics and comments i would be up shit creek with one paddle and a engine that didnt fit.

Chuck
04-26-2005, 06:48 PM
didja know you can use 351C pistons on a 400 crank with a little machine work?

Actually, the fun combination is:
400M Crank
Windsor block & Pistons, overbored
300-I6 or Dodge 318 rods

This combo makes for a budget 408ci Windsor. :thumbup

The Cleveland heads will also bolt onto either of the Windsor blocks (351W, 302) with minor modifications (drill out one water passage) and the correct intake manifold. The 4V C heads are VERY similar to the Boss 302 heads (read: nearly identical), and have the same ungodly huge flow capacity. This combo is typically known as a "Clevor." :toothless

Combine the two and you get a 408 Clevor with a really serious set of cylinder heads, halfway on a budget (still some machine work required).

I wouldn't use the 4V heads on a truck, though.

The 351M/400M heads have the same huge ports and valves as the Cleveland, and will also bolt onto the Windsor with the same modifications. However, the M heads and 2V C heads are all open-chamber heads, and have no quench to speak of. You have to run low compression to keep them from pinging themselves to nonexistence. Hence, this combination doesn't work well, which is a shame since the M heads are so easy to come by.