My 340/420 Stroker Build

Cam Update:
I had a few phone calls this morning with Bullet, and I am going with a solid flat tappet. The cam that I pulled out of this block was a 234/238 SFT, so I might be able to reuse some of the valvetrain.

This cam specs out as a 252/256 @ .050, .365"/.365" lobes, 109 to be installed at 105. The spring specs are 145-150lbs / 350-360lbs for 6200rpms max. I am running Yella Terra 1.65 rockers, so after lash (before geo loss) this specs out right around .585". My Sidewinder heads were ported by Larry Smith (RIP) to 280 @ .550".

I'm getting excited to get this engine back together by Spring.