Opinion on Clifford mods for Slant 6 motors

I would take a look at slantsix.org and see what some of the really knowledgeable slanters have done and recommend and do lots of reading. What are your goals for the car? Drag race, road racing, nice peppy driver, street and strip, occasional strip? Whatever your plans are, be sure to do some measuring after taking the head off and before disassembling the block like how far down in the hole are the pistons? What is the combustion chamber volume? That info will help you decide on how much to deck the block and/or Mill the head for increased compression. As they will tell you at .org the head is the biggest bottleneck on making power in a slant.

You can certainly do better than buying Clifford’s high price stuff as someone else has mentioned. Ask @slantsixdan about Clifford sometime!

I’m personally doing a beefed up slant in my wagon - blocked bored 30 over and the deck cut 90 thou with the head cut another 10 thou. Will be using a single 4 barrel or possibly a FiTech FI with a set of long discontinued Clifford Early A long tube headers designed to work with PS. With the cam I selected with the help of the guys over at .org I should have about 10 to 1 C.R. and a Dynamic C.R. of about 8 to 1.