Very cool Shoomin!

Us Brits know a bit about track racing and Yanks lol...

Most historic classes here are very strict on engine size!
A 427ci centre-oiler is 427 plus one overbore...

I just did a 427 'standard bore' for an early Galaxie a 1963 centre-oiler with medium riser heads.
They are over-bored 406ci's, so don't like over-boring anyways.
Cast crank and Lemans rods and rev to 7000rpm's.

I'm guessing a 426 maxie wedge will be very competitive in stockish form?

I have a 1962 413 max wedge engine here for a similar build also...
Big ports can hurt power curves on race tracks with corners...

I also have the 1969 Weslake 426ci wedge engine that was built for circuit racing.
Real shame it was never put into production.
Ovalport heads and a very sexy Edelbrock STR intake.

Makes the Mopar M1 'max wedge' intake look small lol...