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A 383 is a 350 block with a 400 crank. The block is bored to 4.030". A 400 has a 4.125" bore, so you'd need to bore the 383 roughly .095", which is probably not practical as the 350 is not made to be overbored that much.
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How much do you have to bore a 400 chevy block to make it a 406?
.030"
What is the difference between a Chevy 400 and a Chevy 350?
The bore and stroke is different, But if you set the 2 side by side they will look the same other then some 400 engines have an extra freeze out plug in the side of the block that the 350 don't have. 350 bore and stroke is 4.000 bore,stroke is 3.480 400 bore is 4.125 and stroke is 3.750
What is 383 small block engine?
350 block, 400 crank. Main journals must be turned to accept 350 bearings. Stock bore is 377. .030 over is 383.
What is the bore size for a Chevy 383 stroker?
If I remember this correctly its stock 350 4 inch fitted with the 400 crank and rods.
What does it take to make a poor mans 383 already have a stock 94' caprice classic with the 350 and under 170xxxKM any help is greatly appreciated?
You need a crank from a 400 turned down to fit 350 main bearings and a set of 400 rods on the 350 pistons. Also need a flywheel and balancer from a 400. If the engine is standard bore, it would be a 377. A 383 is bored .030" oversize.
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.
Timing for 383 stroker?
how do i find the timing on my 383 400 hp stroker motor
How do you make a small block 454?
bore and stroke a chevy 400 smallblock.
What is the cylinder bore on a 400 small block?
a 400 small block Chevy has a 4.125" bore.
Can you bore a 350 to 400?
no
How can you tell if your 383 is a big block or small block?
Chrysler 383 is a big block. The Chevy 383, is a de stroked 400, small block.
When was the 383 4 bolt main engine made?
Chevrolet never built a 383 for production use. Many aftermarket suppliers have produced a 383 Chevy. It was originally built by taking a 400 crankshaft and having the main journals reground to fit a 350 block. The combination of the 400 crank and rods with the 350 block and pistons yields a reciprocating assembly with correct compression height. In standard bore, this would make 377 cubic inches. The 383 would be a .030" overbore. Since most of those parts have been used up, the aftermarket now produces all new parts to build a 383. It could be noted that Chrysler produced a 383 for many years during the 60's and 70's. It has nothing in common with the Chevrolet.
