Im in the works of fixing one problem of my newly acquired engine.

Here it is.

The block is a KB stage 7 block and i need to figure out if the Intake lifters holes have been moved over .070 towards each other yet or not.

The heads are B1-TS 4.840 heads and i've been told that i need to move the In lifter holes .070 towards each other and use a .210 offset lifter.

What is the stock measurement between two intake lifters? Once i figure this out i can see if mine have been moved or not.

Who ever worked on the engine before must have been a GM man because they used small .840 gm lifters with no offset.

Thanks
Doug