Samuel Stella
Member
I'm new here but getting lost in the links and sub links and their links is time well spent. I've recently replaced the blown 305 in my 85 K-10 with a mystery 383, I say that because I don't know it's history. It's an odd build and I would have liked to tear into it more before dropping it in my truck but she's my daily driver so time was of a limited nature. What I do know is the machine work on the short block seems to be top notch very nice clearancing done with end mill. Scat forged crank, H beam rods, forged pistons. Up top Vortec heads Edelbrock Performer spread bore intake which worked out nicely because I'm a big QuadraJet fan. The mystery aspect is the cam and compression ration. Which makes it harder to fine tune but with all that I've learned from you guys I'm getting there. After dropping it in the first things I went out and bought were a piston stop, timing tape and timing light. Grumpy has made it clear that knowing not guessing TDC and advance curve would be a good place to start.