Questions on lifter bore correction

[Dwight Southerland]

Caution on using anyone's fixtures. I bought a BHJ for a BBC years ago and after getting blueprints from Chev, found that the BHJ was out as much as most blocks. Then you have to wrestle with the assumption that the factory design and specs are the most optimum for valve train geometry. At least you will get them consistent.

[Bill Diehl]

Originally Posted by Dwight Southerland

Caution on using anyone's fixtures. I bought a BHJ for a BBC years ago and after getting blueprints from Chev, found that the BHJ was out as much as most blocks. Then you have to wrestle with the assumption that the factory design and specs are the most optimum for valve train geometry. At least you will get them consistent.

This is a good point, In most cases the factory design is not even close to optimum, as I said earlier specifically with canted valve heads

This was not brought up in the roller cam thread but it is a big reason why some guys are chewing thru lots of valvetrain parts..... did somebody mention.... "lifters"