2.02’s clear a stock 318 bore. No “NEED” to notch the cylinder but it would help in a minor way.
Never heard of a 318 being punched out to 4.04. 4.00? Yes 4.04, no.
agree.
When Adney machined the 318 motor i have posted on here several times( 477 horse iron head 318) with 2.02 RT heads no bore notching done. And the motor was built for a dyno competition. If it would have mattered, he would have done it.
I had zero problems running the motor, made good power, good ET, beat on it for 4 seasons.
