Piston Size

G

Granny

Member
I have a C1BA engine that had 0.020th pistons which needs rebore, What size
pistons would you guys recommend to replace the old ones.
Thanks in advance
Granny
 
For a general rebuild, the machine shop can determine the minumn bore size to clean up the cylinders. For a street rod, I'd go with a 3 5/16 bore and a .07-" angle milled heads. Using the stock cam this will increase the low and mid range torque, raise the Cr to over 8:1 thus increasing gas mileage and performance in an otherwise stock engine with out increasing the cost of the re build much. Be nice if you could buy auto thermatic pistons, but I don't know if anybody makes them any more. I built a 296ci engine back in the 90's with a set of 3 3/8 x 4 1/8 (296") with stock style 4 ring steel strut pistons. What a fantastic street engine that was as still is.
Gramps
 
Why I asked the Question was I am trying to find some piston here in Aussie
My engine is going into a hot rod so not to worried about Economy I have flatattack racing Heads and a Crow cam to go in it
Granny
 
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