what year 400?
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Joined: Jan 2003
Posts: 184
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what year 400?
Originally posted by baddad457
Go back and check that 72 400 to see what transmission is behind it. Some of the 72's had FMX transmissions and the blocks were cast with the small block bellhousing pattern to use with the FMX. These blocks are worth much more than the run of the mill 400 blocks. A bare small block pattern 400 block sold on ebay a month ago or so for $425.
Go back and check that 72 400 to see what transmission is behind it. Some of the 72's had FMX transmissions and the blocks were cast with the small block bellhousing pattern to use with the FMX. These blocks are worth much more than the run of the mill 400 blocks. A bare small block pattern 400 block sold on ebay a month ago or so for $425.
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More Turbo
Joined: Oct 2001
Posts: 713
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From: Augusta.GA
what year 400?
Somehow or another I missed that fact! I thought they were same length but to that the wristpin size was smaller on the 351m so it had to be bored and a bushing inserted to use with 400 pistons.
Please verify!
Please verify!
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More Turbo
Joined: Oct 2001
Posts: 713
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From: Augusta.GA
what year 400?
That was what must have thrown me! I'd been looking at getting pistons for 351c and these would have to be bushed. Okay, so now I'm down to getting a crank, and this'd have to be turned I reckon for it to be useful. Now I'm looking at a crankkit with pistons vs. a donor block.
I think I'm finally back to where I arrived before I had to drop the project.
Okay, so much for playing catch up. Now I'll hunt a source for the crank and piston kits, add all the things up and see how I come out.
I guess its best to drop the hunt for a donor?
I think I'm finally back to where I arrived before I had to drop the project.
Okay, so much for playing catch up. Now I'll hunt a source for the crank and piston kits, add all the things up and see how I come out.
I guess its best to drop the hunt for a donor?
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
what year 400?
If you were closer, I'd sell you the built 400 in my kid's truck. I'm fixin to pull it and reinstall the stock 400 that was in it when I bought it. The built 400 has a year's running time on it. The only thing wrong is the excessive piston to wall clearance, it has an annoying rattle in it at steady speeds. It's been like this since it was rebuilt last year, so far it hasn't hurt anything. A fresh block bored to match the pistons would cure the problem. We're gonna sell the truck and get something else for him to play with.
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More Turbo
Joined: Oct 2001
Posts: 713
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From: Augusta.GA
what year 400?
Baddad, thanks for the offer. where u live anyway?
Bill, thanks I'll check ebay out, see what I find... guess it wouldnt hurt to keep checking there see what I find.
Bill, thanks I'll check ebay out, see what I find... guess it wouldnt hurt to keep checking there see what I find.
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Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
what year 400?
I'm in south Louisiana. I go to Georgia every so often ( I drive a truck) but trying to haul a motor in back of the cab, isn't practical. I was planning on selling the motor complete, less the carb, distributor, water pump, alternator, & P/S pump. It's got 351C forged flattops, ported and polished 400M heads,milled .030, the block is decked .010 , Comp Cams 280H cam ( 280 degree .530 lift) Crane rocker stud conversion kit, big chevy rockers, rods have been resized and fitted with ARP bolts, crank is 10/10, Intake is a Weiand 8010 dual plane. Ford Racing finned aluminum valve covers, rear sump oil pan ( for a 80-82 pickup but it also works on a 77-79)
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
what year 400?
When I brought it to the shop that bored it, I told them to leave a .006 in the piston to wall clearance. This is about what I used on a 427 & a 390 back in the 80's with forged pistons. Never had a fitment problem running that clearance. But I never went back and checked up behind them , which now in hindsight, I should have. I just put it together. I have switched machine shops since and the guy who does my stuff now told me not to worry about the rattle, he's seen a few like it that ran for years like it and they never had problems. Like I said it's been running a year now with a 16-17 year old driving it and it's held up fine. The truck it's in ain't in the best of shape and the boy has lost interest in restoring it, so I'm going to pull this motor and stick the 400 that came with it back in to sell the truck, this will be the only way I can recoup my cost's in it.
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