olds330

ok, a little help please... looking for pistons.. have a 400 66/67 and would like to bore 60 over.. was thinking pistons might be one of the easier things to come up with... not looking to run this past 4K rpm,
don't need forged... was thinking 350, would be fine or 425's.. using
425 crank.. any ideas would be great... I may not be looking in the all
the right places, but they appear to be a harder then I had thought ..
thanks
john

coppercutlass

Egge machine sells new cast pistons I'm not sure on the. 400 but you can check out their website.

olds330

thanks, I was just over there, they seem to be very proud of their stuff.. not sure I need 400.00 pistons for this build... but it may be the only way I can go..

joe_padavano

It's common to use standard bore Olds 350 pistons in an early 400. Compression height is the same and the 4.057" piston is an 0.057" overbore on the stock 4.000" bore.

By the way, the early 400 crank IS the 425 crank. Same forging, same stroke (3.980").

olds330

thanks joe

john

jaysoldsx

i have a new set of 70 model pistons that are +.30 that was gonna use on a build went with a 455 instead been on shelf 10 yr make offer or trades if interested they are the small dish high compression basic oversize pistons call me 931 434 7412 im lookin for a 400 425 steel crank any one

boese1978

I've got a stock set ( used ) of 1968 350 pistons