Block Notching
 

I was considering buying tuner toys rods for my b18a since they are a pretty good bang for the buck but ive read a few places that you will need to notch the block. Does someone know what this process entails?

Re: Block Notching
 

You grind away at the bottoms of the bores to clear the rod's big end. I'm pretty sure it's for D-series only, which have very small bores, not for LS.

Re: Block Notching
 

yep. only d-series needs notching with h beam rods. b-series dont need the notching.
d-series also needs the girdle notched depending on the arp bolts