92builtbird

Is it possible to do a 4.125 inch bore and a 3.75 inch stroke in a chevy 283, to make 400 cubic inches?

thanks!

ZONES89RS

iTrader: (25)

Not no but HELL not.


Z

1994z

iTrader: (48)

second the no, but you can bore your 283 .125 over with stock stroke. leave the line at 8000 rpm shift at 10,000.

SMALLBLOCKHERO

iTrader: (2)

you need an aftermarket block with siamese bores to acheive that bore size.

mrdragster1970

.

The only chevy block that will take a 4.125 bore is a 400. If you have a 283", try selling or trading to a restorer.
Someone that needs a number matching 283". Than get a 400 or aftermarket block.

.

RAGENZ28

iTrader: (5)

I ran my 400 block with a 4.145 bore, you can go 4.155

ZONES89RS

iTrader: (25)

Mine is 4.165.

RAGENZ28

iTrader: (5)

.40 over on a stock 400 block

ZONES89RS

iTrader: (25)

Yea, you can go .060, but you are not going to last long usually.

slow95z

iTrader: (33)

you could bore your 283 to 4.125 but you would catch hell keeping water in it and not in the oil pan. the 400 can be bored out a good bit because most of the time its filled with hardblock and you're only wanting to make it a 1/4 of a mile from where you are. you really wouldn't want to get stuck in traffic with a stock bore on a hot day with a well built motor with a 400 though.