Slant Six Build Ideas
Here is the cylinder head after I cut the guides to the diameter of the seals I am using and also opened the springs up to accept the Comp 911 springs. A note of worth.....do NOT machine the spring seats DOWN into the head. They are pretty thin in that area. If you need more spring height, do like I did and use the 318 valves. They are about .300" longer than the stock valves and allow for more spring height and open the door for more spring to handle a camshaft with more lift. Using them also opens the door to having to have the rocker shaft assembly relocated. Nothing to it other than paying Mike at B3 Racing Engines to make custom shims for the rocker shaft. It's only money. With the mods you're wanting to do, I seriously doubt you'll need to go that far. Here is the top side of the head where you can see the guides and spring seats after I cut them.
Here is the cylinder head after I cut the guides to the diameter of the seals I am using and also opened the springs up to accept the Comp 911 springs. A note of worth.....do NOT machine the spring seats DOWN into the head. They are pretty thin in that area. If you need more spring height, do like I did and use the 318 valves. They are about .300" longer than the stock valves and allow for more spring height and open the door for more spring to handle a camshaft with more lift. Using them also opens the door to having to have the rocker shaft assembly relocated. Nothing to it other than paying Mike at B3 Racing Engines to make custom shims for the rocker shaft. It's only money. With the mods you're wanting to do, I seriously doubt you'll need to go that far. Here is the top side of the head where you can see the guides and spring seats after I cut them.
