New 408 build finally started

yellow rose said
The only issue with a 1.7 rocker is the rocker is already so short that when you move the adjuster towards the shaft to get there you are killing the pushrod side geometry.

I tried years ago to get a 1.7 rocker on these shafts for the extra lift but couldn’t do it. IIRC T&D will do it because of the smaller diameter shafts, but that is still a really short rocker to get that ratio.

I was going o say the stock shaft is large and the P-rod needs to move in real close. I figured that was the issue and the reason no body makes it. I never measured. For the most part, between the 1.6 rocker and a high lift cam, you can pretty much get what you need unless the head is an extreme high flow high lift head.

Pittsburg is right. Once you get past trick flow or trick ported Edelbrock heads or the chink stuff, the expense jumps and the cost of faster becomes expensive. I don’t know if TF will release a head above there 190. What’s above the 190 on the performance ladder? The Victor head is new but I don’t see anyone building an engine with them on line. I also have no idea if there total expense as well as against a W9.

67 gt said
Brian Imm used to make lifters with the offset holes.

He got the lifters from BAM who got the lifters elsewhere.