performance · FF-0311

What pistons and compression ratio work with ARDUN heads?

The hemispherical chamber can take a tall, domed piston. Steve's street engine is somewhere around 8.5 to 9 to 1 with the pistons in it, and he has seen ARDUN engines with 13 or 14 to 1 pistons for Bonneville or drag racing. He says the pistons have to be changed when converting.

Expert

Steve Coppock

Evidence

expert attributed

Component

pistons and compression

Applicable scope

Steve Coppock's Ford Flathead V8 with Don Ferguson reproduction ARDUN heads