OST-056: Nasty.....

[oldeskewltoy]

from another forum Wrote:

oldeskewltoy Wrote:Btw, here is a photo showing the difference between a 1st gen TVIS head, and a 2nd gen TVIS head. A first gen is what came on the AE86, the 2nd gen is later

I have to wonder if Toyota had the MR / FWD mounting in mind when they (or Yamaha) designed the 4A-GE. I have one each of the big port heads and noticed this difference.

I've yet to see a Toyota application that uses that mount...........






Work on the head proceeds.....



"Building" the intake side - blending the seat, bowl, and port





also working the exhaust side




more to come......