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The small block 350 uses a smaller main bearing diameter than the Small block 400. To run a 400 crank in a 350 the crank must be "turned" down at a machine shop to fit the 350 bearing diameters. You also will need to use special pistons with the correct compression height for the 350 IF you are using the 5.7 inch 350 connecting rods. If you use the 5.565 inch 400 connecting rods , then you can use regular 350 pistons. The longer stroke 400 crank also requires that you provide additional clearance inside the block, by grinding notches to eliminate the crank hitting the block and other parts. Finally, the entire engine must be re-balanced to make sure that the engine does not vibrate. The 400 is externally balanced and the 350 is internally balenced so you need to use 400 flywheel and 400 harmonic balancer.
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What machining do you have to do to put a 400 sbc crank in a 350 sbc?
The main journals need to be turned down.
What would it take to put a 350 crank into a 400 small block?
You can buy main bearing spacers at most speed shops that will allow you to use standard 350 bearings. Use the 400 pistons on the 350 rods and the height will come out pretty good. You'll lose about 3/4 of a compression point in the destroke, so use a piston that is appropriate for what you're trying to do.
Can you put a big block crank in small block 400?
No
If i put a 400 sbc crank and rods in my stock 350 what difference is it going to make.?
== == That would be a 372. It should produce more torque at a lower rpm than the 350. Some machining required. Answer If you do all the mod's, you get a 350 stroker---thats a 383 now.
Do you need to spilt the block on a 350 Banshee to put a crank seal in it?
no
What is the stroke if you put a 327 crankshaft in a 350 Chevrolet?
Putting a 327 crank in a 350 makes it a 327. (3.25") You can't put a 327 crank into a 350 without changing the pistons. The piston would be 1/4" down in the hole, and would have very little compression.
How do you build a 383 Chevrolet motor?
you put in a 400 crank and shorter pistons
How do you turn a Chevy 350 into a 396?
You can't. yes you can, but you need to bore the block 40 over and put a 375 stroke(400) crank with 6 inch rods. Alote of money and time at the machine shop!!
What needs to be done to put a 400 crank in a 350?
Use good pistons. Be sure to plastigage the bearings. Don't forget to put oil in it when you're done. If this is in a Nova, give it to me when you're done. I've always wanted a 383 Nova, but can't afford it.
Chevy 307 bored out to 350?
Well a 307 has a bore of 3.875 and a stroke of 3.25, so to build a 350 out of a 307 you would need to bore out the 307 .125 inch to a 4 inch bore, which in most cases can not be done, and you would have to put a 350 crank which has a stroke of 3.48 inches and use 350 pistons. But if you want more cubes and power out of your 307 you can bore it .03 over, have it decked .025 inches, and use a 350 crank with 400 rods and 307 pistons to make a ground pounding 333 stroker.
Can you put an LT1 350 engine crank and pistons in a 350 4 bolt main?
A real LT-1 had a four bolt main block.
Can you put a 400 crankshaft in a 350?
yes but to do it u must bore your 350 30 over use 400 pistons and 6' rods that makes ur 350 to s 383 stroker engineactually dont you have to bore it 60 over and stroke it at 3.75 from the stock 3.48 and then throw 6" rods in it or use the 5.7" and get the machine shop to balance it. I am in the process of trying to find out a way to turn down the 400 crank just a slight bit and and adjust the stroke of my 350 to it and the main journal a little bit and then put the 6 inch rods in it and make sure the height lines up! anyone have any tips on a project similar to this???My VersionYou don't need to bore 30 over You need: Correct pistons for modification, 400 crank, 400 rods, HArmonic balancer and flexplate for 400This is the basic 383 but to be a "true" 383 it needs the 30 over size pistons.
