OST-068: Smok'n

[oldeskewltoy]

(06-01-2020 10:31 AM)decryphe Wrote:  So what's the plan for this engine overall?

The plan...

the bottom end of the engine gets a complete rebuild, with new Toyota 81.5mm Blacktop pistons, rings, and new bearings. Additionally the bottom end will get fully balanced. The deck height will be set to provide a squish: minimum of .032" (max of .036").

The head has already (previously) been machined .004", I'll be taking about .004" to drop chamber volume about 1cc from before all machine work.

The chambers in this head are the best I've seen in any of the Blacktop heads I've worked - No chamber work will be needed

Now as nice as the chambers are... some of the ports are not so nice.

poor port alignment (core shift) here




and here....





Fixing said poor alignment




and showing a comparison of 2 intake ports - before and after work





More to come.....