New to the Inline-6 world, but looking to build a blown 292 to run in a 54-55 Chevy truck.
While looking for forged pistons that could fit the 292 I came across LS1 pistons, which come in a 3.905" diameter (.030 over 292)
The compression height is quite different but with a longer rod (7.25) you should be able to compensate.
Below is a calculation which yields a 7.4 CR, based on a 59cc head.
The piston calculated is from Diamond, Wiseco has similar ones.
//Lennart
