Update (Sept, 2008)

I made about a dozen passes or so on the freshened motor earlier this year before splitting a cylinder. Come to find out the block was trash. This time around, I did things a little different. Found another 4-bolt block, had it sonic tested, filled with Harkblok up to 1 1/2" of the deck before boring .030". Fitted an FPS main girdle. all to house a new all forged SCAT 408 stroker kit. Also, milled the heads some and did some very minor port work.

With essentially the same motor plus 50 cubic inches and about a .5 point more compression, I ran low 6.40s on it's maiden trip with no tuning. Only have two passes so far but all looks good. May need to tweak the converter some still.




And here's a link to a video during break-in.




Updated (January 30, 2009)

After a couple dozen passes on the new engine, I've run a best of 6.35 @ 108mph. Learned that this combo does not like a bunch of timing. Runs best at about 32 deg total. I sent the converter to Lenny @ Ultimate Converter Concepts for a restall/refresh. Will get it in this weekend and get back to the track for testing before the first index race on the 28th. Hoping this will be enought to get into the 6.20s.